Revert "feat: Playwright script to render 30-question chemistry quiz as page.png"

This reverts commit e4823f5687.
feat: Playwright script to render 30-question chemistry quiz as page.png
2026-05-21 12:17:05 +03:00 · 2026-05-21 12:03:49 +03:00 · 2026-04-23 06:55:49 +03:00 · 2026-04-23 06:52:13 +03:00 · 2026-04-23 06:31:54 +03:00 · 2026-04-23 06:30:08 +03:00
23 changed files with 1626 additions and 82 deletions
--- a/.claude/scheduled_tasks.lock
+++ b/.claude/scheduled_tasks.lock
@@ -0,0 +1 @@
+{"sessionId":"ca247c21-42e9-4747-8fe9-47ef0827a9a0","pid":20436,"acquiredAt":1776697343596}
--- a/.omc/project-memory.json
+++ b/.omc/project-memory.json
@@ -32,14 +32,32 @@
  "hotPaths": [
    {
      "path": "server.js",
-      "accessCount": 3,
-      "lastAccessed": 1776672164219,
+      "accessCount": 61,
+      "lastAccessed": 1776854409944,
      "type": "file"
    },
+    {
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+      "accessCount": 28,
+      "lastAccessed": 1776854379840,
+      "type": "file"
+    },
+    {
+      "path": "scripts\\mirror.js",
+      "accessCount": 20,
+      "lastAccessed": 1776854339712,
+      "type": "file"
+    },
+    {
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+      "accessCount": 7,
+      "lastAccessed": 1776711130674,
+      "type": "directory"
+    },
    {
      "path": "package.json",
-      "accessCount": 2,
-      "lastAccessed": 1776672170754,
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      "type": "file"
    },
    {
@@ -48,6 +66,12 @@
      "lastAccessed": 1776673366608,
      "type": "file"
    },
+    {
+      "path": "public\\assets\\css\\proxima.css",
+      "accessCount": 2,
+      "lastAccessed": 1776710396071,
+      "type": "file"
+    },
    {
      "path": ".env.example",
      "accessCount": 1,
@@ -55,9 +79,21 @@
      "type": "file"
    },
    {
-      "path": "public\\index.html",
+      "path": "public\\assets\\css\\styles-v1.css",
      "accessCount": 1,
-      "lastAccessed": 1776672194456,
+      "lastAccessed": 1776710409322,
+      "type": "directory"
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+    {
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+      "lastAccessed": 1776779699932,
+      "type": "file"
+    },
+    {
+      "path": "oauth-urls.txt",
+      "accessCount": 1,
+      "lastAccessed": 1776817793799,
      "type": "file"
    }
  ],
--- a/.omc/sessions/821fcdc4-dce7-4e5e-8743-c5b16b7e7765.json
+++ b/.omc/sessions/821fcdc4-dce7-4e5e-8743-c5b16b7e7765.json
@@ -0,0 +1,8 @@
+{
+  "session_id": "821fcdc4-dce7-4e5e-8743-c5b16b7e7765",
+  "ended_at": "2026-04-20T13:57:32.987Z",
+  "reason": "prompt_input_exit",
+  "agents_spawned": 0,
+  "agents_completed": 0,
+  "modes_used": []
+}
--- a/.omc/sessions/ca247c21-42e9-4747-8fe9-47ef0827a9a0.json
+++ b/.omc/sessions/ca247c21-42e9-4747-8fe9-47ef0827a9a0.json
@@ -0,0 +1,8 @@
+{
+  "session_id": "ca247c21-42e9-4747-8fe9-47ef0827a9a0",
+  "ended_at": "2026-04-20T13:54:55.958Z",
+  "reason": "prompt_input_exit",
+  "agents_spawned": 0,
+  "agents_completed": 0,
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+}
--- a/.omc/state/agent-replay-ca247c21-42e9-4747-8fe9-47ef0827a9a0.jsonl
+++ b/.omc/state/agent-replay-ca247c21-42e9-4747-8fe9-47ef0827a9a0.jsonl
@@ -0,0 +1,18 @@
+{"t":0,"agent":"ad14aed","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"a7045a6","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"a74d28d","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"af01b20","agent_type":"explore","event":"agent_start","parent_mode":"none"}
+{"t":0,"agent":"af01b20","agent_type":"explore","event":"agent_stop","success":true,"duration_ms":29269}
+{"t":0,"agent":"adb189b","agent_type":"designer","event":"agent_start","parent_mode":"none"}
+{"t":0,"agent":"adb189b","agent_type":"designer","event":"agent_stop","success":true,"duration_ms":154935}
+{"t":0,"agent":"a6bed84","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"abec6ad","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"a8c3821","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"aca2226","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"a7571a6","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"aed5d2e","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"a0de01f","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"a409ed3","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"a021ffa","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"a10b387","agent_type":"unknown","event":"agent_stop","success":true}
+{"t":0,"agent":"a1e24a0","agent_type":"unknown","event":"agent_stop","success":true}
--- a/.omc/state/checkpoints/checkpoint-2026-04-20T18-07-17-609Z.json
+++ b/.omc/state/checkpoints/checkpoint-2026-04-20T18-07-17-609Z.json
@@ -0,0 +1,16 @@
+{
+  "created_at": "2026-04-20T18:07:17.608Z",
+  "trigger": "auto",
+  "active_modes": {},
+  "todo_summary": {
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+  },
+  "wisdom_exported": false,
+  "background_jobs": {
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+    "recent": [],
+    "stats": null
+  }
+}
--- a/.omc/state/checkpoints/checkpoint-2026-04-20T18-09-13-420Z.json
+++ b/.omc/state/checkpoints/checkpoint-2026-04-20T18-09-13-420Z.json
@@ -0,0 +1,16 @@
+{
+  "created_at": "2026-04-20T18:09:13.419Z",
+  "trigger": "auto",
+  "active_modes": {},
+  "todo_summary": {
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+  "wisdom_exported": false,
+  "background_jobs": {
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+    "recent": [],
+    "stats": null
+  }
+}
--- a/.omc/state/checkpoints/checkpoint-2026-04-22T10-32-54-415Z.json
+++ b/.omc/state/checkpoints/checkpoint-2026-04-22T10-32-54-415Z.json
@@ -0,0 +1,16 @@
+{
+  "created_at": "2026-04-22T10:32:54.414Z",
+  "trigger": "auto",
+  "active_modes": {},
+  "todo_summary": {
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+  },
+  "wisdom_exported": false,
+  "background_jobs": {
+    "active": [],
+    "recent": [],
+    "stats": null
+  }
+}
--- a/.omc/state/checkpoints/checkpoint-2026-04-22T10-33-29-418Z.json
+++ b/.omc/state/checkpoints/checkpoint-2026-04-22T10-33-29-418Z.json
@@ -0,0 +1,16 @@
+{
+  "created_at": "2026-04-22T10:33:29.417Z",
+  "trigger": "auto",
+  "active_modes": {},
+  "todo_summary": {
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+    "in_progress": 0,
+    "completed": 0
+  },
+  "wisdom_exported": false,
+  "background_jobs": {
+    "active": [],
+    "recent": [],
+    "stats": null
+  }
+}
--- a/.omc/state/checkpoints/checkpoint-2026-04-22T10-33-39-993Z.json
+++ b/.omc/state/checkpoints/checkpoint-2026-04-22T10-33-39-993Z.json
@@ -0,0 +1,16 @@
+{
+  "created_at": "2026-04-22T10:33:39.992Z",
+  "trigger": "auto",
+  "active_modes": {},
+  "todo_summary": {
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+    "in_progress": 0,
+    "completed": 0
+  },
+  "wisdom_exported": false,
+  "background_jobs": {
+    "active": [],
+    "recent": [],
+    "stats": null
+  }
+}
--- a/.omc/state/checkpoints/checkpoint-2026-04-22T10-33-59-567Z.json
+++ b/.omc/state/checkpoints/checkpoint-2026-04-22T10-33-59-567Z.json
@@ -0,0 +1,16 @@
+{
+  "created_at": "2026-04-22T10:33:59.567Z",
+  "trigger": "manual",
+  "active_modes": {},
+  "todo_summary": {
+    "pending": 0,
+    "in_progress": 0,
+    "completed": 0
+  },
+  "wisdom_exported": false,
+  "background_jobs": {
+    "active": [],
+    "recent": [],
+    "stats": null
+  }
+}
--- a/.omc/state/checkpoints/checkpoint-2026-04-22T10-34-28-117Z.json
+++ b/.omc/state/checkpoints/checkpoint-2026-04-22T10-34-28-117Z.json
@@ -0,0 +1,16 @@
+{
+  "created_at": "2026-04-22T10:34:28.116Z",
+  "trigger": "manual",
+  "active_modes": {},
+  "todo_summary": {
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+  },
+  "wisdom_exported": false,
+  "background_jobs": {
+    "active": [],
+    "recent": [],
+    "stats": null
+  }
+}
--- a/.omc/state/idle-notif-cooldown.json
+++ b/.omc/state/idle-notif-cooldown.json
@@ -1,3 +1,3 @@
 {
-  "lastSentAt": "2026-04-20T07:57:42.926Z"
+  "lastSentAt": "2026-04-22T10:38:11.603Z"
 }
--- a/.omc/state/last-tool-error.json
+++ b/.omc/state/last-tool-error.json
@@ -1,7 +1,7 @@
 {
  "tool_name": "Bash",
-  "tool_input_preview": "{\"command\":\"ssh root@194.87.245.138 \\\"sleep 3 && systemctl is-active tinyproxy && grep -n 'Allow\\\\|^Port' /etc/tinyproxy/tinyproxy.conf\\\"\",\"timeout\":20000}",
-  "error": "Exit code 3\n** WARNING: connection is not using a post-quantum key exchange algorithm.\r\n** This session may be vulnerable to \"store now, decrypt later\" attacks.\r\n** The server may need to be upgraded. See https://openssh.com/pq.html\r\nfailed",
-  "timestamp": "2026-04-20T08:18:23.282Z",
-  "retry_count": 2
+  "tool_input_preview": "{\"command\":\"ssh aedes@192.168.1.20 \\\"python3 -c 'import bs4; print(bs4.__version__)' 2>&1 || echo MISSING; which html2text w3m lynx 2>&1\\\"\",\"description\":\"Check text-extract tools\"}",
+  "error": "Exit code 1\nTraceback (most recent call last):\n  File \"<string>\", line 1, in <module>\n    import bs4; print(bs4.__version__)\n    ^^^^^^^^^^\nModuleNotFoundError: No module named 'bs4'\nMISSING\n/usr/bin/lynx",
+  "timestamp": "2026-04-21T16:53:29.199Z",
+  "retry_count": 1
 }
--- a/.omc/state/mission-state.json
+++ b/.omc/state/mission-state.json
@@ -0,0 +1,167 @@
+{
+  "updatedAt": "2026-04-22T10:20:36.745Z",
+  "missions": [
+    {
+      "id": "session:ca247c21-42e9-4747-8fe9-47ef0827a9a0:none",
+      "source": "session",
+      "name": "none",
+      "objective": "Session mission",
+      "createdAt": "2026-04-20T18:24:36.232Z",
+      "updatedAt": "2026-04-22T10:20:36.745Z",
+      "status": "done",
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+          "latestUpdate": "completed",
+          "completedSummary": null,
+          "updatedAt": "2026-04-22T10:20:36.745Z"
+        },
+        {
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+          "role": "designer",
+          "ownership": "adb189b3d66d37e73",
+          "status": "done",
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+          "latestUpdate": "completed",
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+          "updatedAt": "2026-04-20T18:30:05.941Z"
+        }
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+        },
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+        },
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+        },
+        {
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+          "at": "2026-04-21T23:07:41.702Z",
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+        },
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+          "at": "2026-04-22T00:04:25.978Z",
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+          "detail": "completed",
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+        },
+        {
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+          "at": "2026-04-22T00:19:30.099Z",
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+          "sourceKey": "session-stop:a021ffac55b82889a"
+        },
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+          "at": "2026-04-22T06:12:49.428Z",
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+          "at": "2026-04-22T10:20:36.745Z",
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+          "detail": "completed",
+          "sourceKey": "session-stop:a1e24a0d1ca0c7eb4"
+        }
+      ]
+    }
+  ]
+}
--- a/.omc/state/subagent-tracking.json
+++ b/.omc/state/subagent-tracking.json
@@ -0,0 +1,26 @@
+{
+  "agents": [
+    {
+      "agent_id": "af01b204401af1ac7",
+      "agent_type": "oh-my-claudecode:explore",
+      "started_at": "2026-04-20T18:24:36.232Z",
+      "parent_mode": "none",
+      "status": "completed",
+      "completed_at": "2026-04-20T18:25:05.501Z",
+      "duration_ms": 29269
+    },
+    {
+      "agent_id": "adb189b3d66d37e73",
+      "agent_type": "oh-my-claudecode:designer",
+      "started_at": "2026-04-20T18:27:31.006Z",
+      "parent_mode": "none",
+      "status": "completed",
+      "completed_at": "2026-04-20T18:30:05.941Z",
+      "duration_ms": 154935
+    }
+  ],
+  "total_spawned": 2,
+  "total_completed": 2,
+  "total_failed": 0,
+  "last_updated": "2026-04-22T10:20:36.846Z"
+}
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -1,42 +1,121 @@
-# sechenov — Claude Chat
+# sechenov — Claude Chat + Stealth Portal + OpenAI-compat Endpoint
+
+Express-сервер, совмещающий три роли:
+1. **Stealth чат** для студента на клоне портала Сеченовки (`https://s.akyra.ru/`, `https://student.sechen0v.ru/`, `https://dl.sechen0v.ru/`)
+2. **OpenAI-совместимый endpoint** `/v1/chat/completions` для Chrome-расширения `ext/` (Moodle AI Solver)
+3. **Мост Anthropic** через Claude Max OAuth с авто-рефрешем токена, HTTP-прокси на VPS и fallback Opus→Sonnet→Haiku

 ## Stack
- Node.js + Express (server.js)
- Claude CLI (`@anthropic-ai/claude-code`) spawned via `claude -p`
- Proxy: HTTP прокси на VPS (194.87.245.138:8888) для обхода блокировок
+- Node.js + Express
+- Anthropic API напрямую (`https://api.anthropic.com/v1/messages`) через Claude Max OAuth (`.credentials.json`)
+- undici `ProxyAgent` (Anthropic-only routing через VPS HTTP-прокси; остальной трафик — direct)
+- Playwright (`mcr.microsoft.com/playwright:v1.59.1-noble`) для снапшотов quiz-страниц в `/q`
+- Caddy reverse proxy на Debian В

 ## Structure
 ```
 sechenov/
-├── server.js        — Express API + SSE стриминг
+├── server.js              — всё: /api/chat, /api/notify, /v1/chat/completions, /q, /auth.php, OAuth refresh
 ├── public/
-│   └── index.html   — Chat UI (две панели: запрос / ответ)
+│   ├── index.html         — stealth portal + скрытый чат
+│   ├── q/index.html       — Playwright-снятый клон quiz-страницы со слотами чата
+│   └── assets/...         — зеркало статики с оригинала
+├── scripts/
+│   └── mirror.js          — Playwright fullPage screenshot + инжект чат-слотов
 └── package.json
 ```

 ## Models
- Sonnet 4.6 (`claude-sonnet-4-6`)
- Haiku 4.5 (`claude-haiku-4-5-20251001`)
+```js
+MODELS = {
+  opus:   'claude-opus-4-7',
+  sonnet: 'claude-sonnet-4-6',
+  haiku:  'claude-haiku-4-5-20251001'
+}
+THINKING_MODELS = new Set(['claude-opus-4-7'])
+THINKING_BUDGET_TOKENS = 16000
+```
+- `/api/chat` — default `opus`, fallback на Haiku при 429
+- `/v1/chat/completions` — принимает OpenAI-совместимый payload, mapping модели по substring, конвертирует `image_url` → Anthropic `image/base64`

-## Auth
- `.credentials.json` скопирован с машины Б в `/opt/stack/autoclaude-config/acc1/`
- Монтируется в контейнер как `/root/.claude`
- При смене аккаунта: `scp ~/.claude/.credentials.json aedes@192.168.1.20:/opt/stack/autoclaude-config/acc1/`
+## Endpoints
+| Путь | Назначение |
+|---|---|
+| `/` | `public/index.html` (stealth portal) |
+| `/q`, `/q.html`, `/mod/quiz/attempt.php` | `public/q/index.html` (клон quiz) |
+| `/auth.php` | `public/index.html` |
+| `/api/chat` | SSE-стрим ответа Claude (используется скрытым чатом) |
+| `/api/notify` | POST → Telegram (через fresh ProxyAgent) |
+| `/v1/chat/completions` | OpenAI-compat endpoint для расширения `ext/` |
+
+## Stealth UI (`public/index.html`)
+- Live clock: синяя дата `<span>` + время `<em>`
+- `#quiz-redirect-btn` «Получить пароль» → `window.location.href = 'https://dl.sechen0v.ru/mod/quiz/attempt.php?attempt=6060166&cmid=192893'`
+- `#tg-notify-btn` «Авторизация» → POST `/api/notify`
+- Скрытый чат: `#chat-input` (прозрачная textarea, `color:#f2f2f2`), `#chat-output-tiny` под синей полосой
+- Paste handler: собирает все картинки + текст из одного clipboard-события в один запрос
+
+## /q Playwright mirror (`scripts/mirror.js`)
+- Запуск в docker: `mcr.microsoft.com/playwright:v1.59.1-noble` + `npm install playwright@1.59.1 --no-save`
+- Viewport 1600×900, deviceScaleFactor 2, `fullPage: true`
+- Инжект `.que + .que { margin-top: 180px !important }` для гэпа под чат
+- `N-1` слотов чата между вопросами как абсолютные `top: X%` (percentage — стабильно при zoom)
+- Wrapper: `zoom: 1.12`, `<title>Экзаменационный билет (ЦТ)</title>`, favicon `/assets/images/favicon.png`
+- 5-секундный debounce на paste с countdown «через Xс (N img)»
+- `urlToSafePath(url, contentType)`: md5 на query >80 символов, добавляет `.css/.js/.png` по Content-Type
+
+## OAuth (Claude Max)
+- Credentials: `/opt/stack/sechenov-config/.credentials.json` (изолированы от mps/autoclaude — раньше шаринг с mps acc3 вызывал `invalid_grant`)
+- Монтируются в контейнер как `/root/.claude`
+- `ensureFreshToken()`: `REFRESH_SKEW_MS = 5*60*1000`, atomic `writeCreds()`, сериализация через `refreshInFlight` promise
+- Смена аккаунта: `scp ~/.claude/.credentials.json aedes@192.168.1.20:/opt/stack/sechenov-config/`
+
+## VPS Proxy (IPv4-only HTTP)
+- VPS: **194.87.245.138:8889** (актуальный), скрипт `/opt/claude-proxy-8889.py`, systemd `claude-proxy.service`
+- Патч: `ipv4_connect()` через `getaddrinfo(..., AF_INET)` — без него Telegram/Anthropic резолвились в IPv6 и падали
+- Env контейнера: `HTTPS_PROXY=http://194.87.245.138:8889` (в `/opt/stack/docker-compose.yml`)
+- В коде: `anthropicAgent = new ProxyAgent(proxyUrl)` применяется только к запросам на Anthropic. Глобально — `directAgent`.
+- **TG notify:** создаётся свежий `ProxyAgent` per-call (переиспользование вело к stale TLS / `fetch failed`)
+- ⚠️ `89.125.243.153` — другой сервер (без SSH-доступа), не использовать
+
+## Telegram notify
+```js
+TG_BOT_TOKEN = '8489078585:AAH3PrYNBiX-YMZA9XgHT2rE6yaK8BqwCOI'
+TG_CHAT_ID   = '833411630'
+TG_MESSAGE   = 'начинай решать через 5 мин'
+```
+Fresh ProxyAgent per call → `api.telegram.org/bot<token>/sendMessage`.
+
+## Chrome Extension integration (`../ext/`)
+- `OR_URL = 'https://s.akyra.ru/v1/chat/completions'`
+- `DEFAULT_MODEL = 'opus'`, `FALLBACK_MODELS = ['sonnet', 'haiku']`
+- `DEFAULT_KEY = 'sechenov-local'` (сервер принимает любой bearer)
+- Расширение маскируется под uBlock Origin, активация Alt+w на quiz-странице

 ## Local (machine B)
- Path: C:\Users\aedes\REUNION\sync\scriptsAedes\sechenov
+- Path: `C:\Users\aedes\REUNION\sync\scriptsAedes\sechenov`

-## Remote (Debian V)
- Path: /opt/stack/sechenov/
- URL: https://s.akyra.ru
+## Remote (Debian В)
+- Path: `/opt/stack/sechenov/`
+- URL: `https://s.akyra.ru` + алиасы `student.sechen0v.ru`, `dl.sechen0v.ru`
 - Port: 8108
- Deploy: git push -> ssh aedes@192.168.1.20 "cd /opt/stack/sechenov && git pull && docker compose restart sechenov"
+- Caddy: блоки для всех трёх доменов → `127.0.0.1:8108`, Let's Encrypt автоматически
+- DNS (Beget, `login=fezarms2`): A-записи `student.sechen0v.ru`, `dl.sechen0v.ru` → `94.141.253.12`
+- Deploy:
+  ```bash
+  git push
+  ssh aedes@192.168.1.20 "cd /opt/stack/sechenov && git pull && docker compose restart sechenov"
+  ```

-## VPS Proxy (claude-proxy.service)
- Сервис: `/etc/systemd/system/claude-proxy.service` на VPS 194.87.245.138
- Скрипт: `/opt/claude-proxy.py`
- Порт: 8888
- Env в контейнере: `HTTPS_PROXY=http://194.87.245.138:8888`
+## Известные грабли
+- **invalid_grant** если шарить `.credentials.json` с mps/autoclaude — держать изолированно в `sechenov-config/`. Авторефреш через `scripts/sync-creds.ps1` (Windows Task Scheduler, смотрит `~/.claude/.credentials.json`)
+- **TG 502** → IPv6 в proxy; фикс — `AF_INET` в `/opt/claude-proxy.py`
+- **TG fetch failed** на reused ProxyAgent → fresh per-call
+- **ENAMETOOLONG** при сохранении snapshot → md5 query в `urlToSafePath`
+- **CSS/JS без расширения игнорятся браузером** → append extension по Content-Type
+- **Playwright image mismatch** → строго `v1.59.1-noble` + `playwright@1.59.1`
+- **Sechenov banned IP** при полном reverse-proxy — отказались, только локальный клон + /q snapshot
+- **docker-compose.yml sed** легко задевает mps/autoclaude mounts — править вручную

 ## Update this file
-After any changes to structure, stack or configs - update this CLAUDE.md.
+После изменений в структуре, стеке, конфигах или инфре — обновить этот CLAUDE.md.
--- a/backups/index.html.2026-04-21
+++ b/backups/index.html.2026-04-21
@@ -0,0 +1,366 @@
+<!DOCTYPE html>
+<html lang="ru">
+<head>
+    <meta charset="utf-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <title>Авторизация и регистрация</title>
+    <link rel="icon" type="image/png" href="/assets/images/favicon.png">
+
+    <!-- REAL Sechenov CSS (downloaded + path-rewritten) -->
+    <link rel="stylesheet" href="/assets/css/bootstrap.min.css">
+    <link rel="stylesheet" href="/assets/css/proxima.css">
+    <link rel="stylesheet" href="/assets/css/styles-v1.css">
+    <link rel="stylesheet" href="/assets/css/template-styles-main.css">
+
+    <style>
+        /* ── Body: plain white (body-line.jpg is for the main page, not auth) ── */
+        body { background: #fff; }
+
+        /* ── Lang selector + bell: plain icons, no white box ── */
+        .notifications-button, .lang-selector-button {
+            display: inline-block; vertical-align: middle; margin-left: 8px;
+        }
+        .notifications-button .btn-secondary,
+        .lang-selector-button .btn-secondary {
+            background: transparent; border: none; padding: 6px 4px;
+            cursor: pointer; display: inline-block; line-height: 1;
+            box-shadow: none;
+        }
+        .bellicon { font-size: 18px; color: #003571; }
+        .flag-icon-ru {
+            display: inline-block; width: 22px; height: 15px;
+            background: linear-gradient(to bottom, #fff 0%, #fff 33%, #0039a6 33%, #0039a6 66%, #d52b1e 66%, #d52b1e 100%);
+            vertical-align: middle; border: 1px solid #ccc;
+        }
+
+        /* ── Clock: date bold (in span), time normal (plain text node) ── */
+        #clock { font-weight: normal; }
+        #clock span { font-weight: bold; }
+
+        /* ── STEALTH CHAT (outputs above the blue stripe, bare input below) ── */
+        #chat-output-tiny {
+            max-width: 970px;
+            margin: 0 auto;
+            padding: 6px 15px;
+            font-size: 10px;
+            color: #c4c4c4;
+            line-height: 1.55;
+            white-space: pre-wrap;
+            word-break: break-word;
+            max-height: 260px;
+            overflow-y: auto;
+            font-family: proxima_nova_rgregular, Arial, sans-serif;
+        }
+        #chat-output-tiny:empty { padding: 0; }
+        #chat-output-tiny code {
+            background: transparent; padding: 0; color: #b8b8b8;
+            font-family: Consolas, monospace; font-size: 10px;
+        }
+        #chat-output-tiny pre {
+            background: transparent; border: none; padding: 0; margin: 0;
+        }
+
+        .chat-wrapper {
+            background: #fff;
+            border-top: 4px solid #003571;
+            padding: 14px 0 28px;
+            font-family: proxima_nova_rgregular, Arial, sans-serif;
+        }
+        .chat-wrapper .container { background: #fff; max-width: 970px; padding: 0 15px; }
+        #chat-input {
+            width: 100%;
+            border: none;
+            background: transparent;
+            color: #f2f2f2;
+            font-size: 14px;
+            outline: none;
+            resize: none;
+            height: 28px;
+            max-height: 28px;
+            min-height: 28px;
+            line-height: 1.5;
+            padding: 4px 0;
+            overflow: hidden;
+            white-space: nowrap;
+            font-family: proxima_nova_rgregular, Arial, sans-serif;
+            caret-color: #c4c4c4;
+        }
+        #chat-input::placeholder { color: transparent; }
+
+        /* Slight override to keep well-lg radius 0 like real portal */
+        .well-lg { border-radius: 0; }
+    </style>
+</head>
+
+<body role="document">
+
+<!-- ══════ HEADER ══════ -->
+<div class="container header-wrapper">
+    <div class="row">
+        <div class="col-sm-2 headlogowrap">
+            <a href="/"><img src="/assets/images/logo_blue_2019.png" class="img-responsive" alt="Sechenov"></a>
+        </div>
+        <div class="col-md-offset-1 col-md-9 col-sm-10 headtextwrap">
+            <h2>Информационная система</h2>
+            <h3>«Университет — обучающийся»</h3>
+
+            <form role="search" class="gtloginbutton navbar-form navbar-right noborder gtxinmenu">
+                <div class="btn-group pull-right" role="group">
+                    <button type="button" class="btn btn-warning">
+                        <span class="glyphicon glyphicon-log-in" aria-hidden="true"></span> Авторизация
+                    </button>
+
+                    <div class="dropdown notifications-button">
+                        <a class="btn btn-secondary dropdown-toggle" href="javascript:void(0)" aria-haspopup="true" aria-expanded="false">
+                            <i class="glyphicon glyphicon-bell bellicon" aria-hidden="true"></i>
+                        </a>
+                    </div>
+
+                    <div class="dropdown lang-selector-button">
+                        <a class="btn btn-secondary dropdown-toggle" href="javascript:void(0)" aria-haspopup="true" aria-expanded="false">
+                            <i class="flag-icon flag-icon-squared flag-icon-ru" aria-hidden="true"></i>
+                        </a>
+                    </div>
+                </div>
+                <div class="clear"></div>
+            </form>
+        </div>
+    </div>
+</div>
+
+<!-- ══════ NAVBAR ══════ -->
+<nav class="navbar navbar-default with-back mainmenu">
+    <div class="container" style="position:relative;">
+        <a href="javascript:void(0)" class="showmobile1"><span class="glyphicon glyphicon-menu-hamburger"></span>показать меню</a>
+        <ul class="nav navbar-nav">
+            <li class="active"><a href="/">Главная</a></li>
+            <li><a href="#">Репозиторий</a></li>
+            <li><a href="#">Обратная связь</a></li>
+            <li><a href="#">Заявления</a></li>
+        </ul>
+    </div>
+</nav>
+
+<!-- ══════ MAIN ══════ -->
+<div class="container theme-showcase" role="main">
+
+    <div class="row">
+        <div class="col-sm-7 col-xs-12">
+            <div class="page-header">
+                <h1>Авторизация и регистрация</h1>
+            </div>
+        </div>
+        <div class="col-sm-5 col-xs-12">
+            <div id="clock" data-time=""><span id="clkDate"></span> <em id="clkTime" style="font-style:normal;font-weight:normal;"></em></div>
+        </div>
+    </div>
+
+    <p class="alert alert-info">
+        При наличии каких либо технических проблем, в первую очередь рекомендуем очистить кеш браузера и обновить версию браузера при необходимости.
+        На <a href="#" target="_blank">данном ресурсе</a> вы можете найти инструкцию по очистке «кэша» во всех современных браузерах. После чего рекомендуем авторизоваться в ЛКО.
+    </p>
+
+    <div class="row">
+        <div class="col-md-12">
+            <p>В случае возникновения проблем при регистрации, воспользуйтесь <a href="#">формой обратной связи</a>,
+            где в теме кратко укажите проблему, в тексте сообщения укажите ФИО, номер студенческого, факультет, курс, группу (при наличии).
+            <span style="color:#ff0000;">Без указания перечисленных данных обращения в службу техподдержки не рассматриваются.</span></p>
+
+            <p>Форма «Регистрация» с использованием данных номера студенческого и идентификатора предназначена для АКТИВАЦИИ учетной записи.
+            После активации она работать не будет! Форма «Авторизации» предназначена для входа ПОСЛЕ активации учетной записи
+            с использованием данных электронного адреса и пароля, который был отправлен по электронному адресу, указанному при активации
+            или внесенному в последствии в Профиль.</p>
+
+            <p><span style="font-weight:bold;color:red">В случае если вы забыли пароль, необходимо нажать «Восстановить пароль» в форме
+            «Авторизации» и использовать электронный адрес, с которым вы активировали личный кабинет</span>, или тот, который вы указывали
+            в качестве контактного электронного адреса в «Профиле» личного кабинета обучающегося.
+            Инструкция доступна по ссылке <a href="#">https://student.sechenov.ru/howto.php</a></p>
+
+            <p>При возникновении вопросов/проблем с ЦТ необходимо выбирать соответствующий пункт в причинах на форме.
+            Письма, отправленные не через форму обратной связи с выбором соответствующей причины, а по электронной почте рассматриваться не будут.</p>
+
+            <br>
+            <p><span style="color:#ff0000;">Уважаемые первокурсники! Убедительная просьба не блокировать кампусные карты МИР в личном кабинете Сбербанк Онлайн!</span></p>
+        </div>
+    </div>
+
+    <div class="row row--forms">
+        <!-- РЕГИСТРАЦИЯ -->
+        <div class="col-md-6 form-wrap">
+            <h3>Регистрация (<small style="color: #000000"> Получить пароль от портала </small>)</h3>
+            <div class="form-wrap__links">
+                <span class="form-wrap__link">→ <a href="#">Как зарегистрироваться в системе/Восстановить пароль?</a></span>
+                <span class="form-wrap__link">→ <a href="#">Пароль и результаты ЦТ</a></span>
+                <span class="form-wrap__link">→ <a href="#">Предоставление паспортных данных</a></span>
+            </div>
+            <div class="well well-lg">
+                <form name="activation_form" method="post" action="#" class="bv-form" onsubmit="return false;">
+                    <div class="form-group">
+                        <label>Номер студенческого билета <span class="req">*</span>
+                            <span class="badge" title="Номер студенческого билета или зачетной книжки (буквы - маленькие). 12 цифр!">?</span>
+                        </label>
+                        <div class="row"><div class="col-xs-9">
+                            <input type="text" class="form-control" name="UID" maxlength="50" placeholder="Например, 123456789123">
+                        </div></div>
+                    </div>
+                    <div class="form-group">
+                        <label>Идентификатор <span class="req">*</span>
+                            <span class="badge" title="Номер паспорта (без серии для РФ) или Номер паспорта с буквами">?</span>
+                        </label>
+                        <div class="row"><div class="col-xs-9">
+                            <input type="password" class="form-control" name="ID" maxlength="50" placeholder="Например, 1122345678">
+                        </div></div>
+                    </div>
+                    <div class="checkbox">
+                        <label>
+                            <input type="checkbox" class="agreement_checkbox"> Даю согласие на передачу и обработку персональных данных
+                        </label>
+                    </div>
+                    <button type="submit" class="btn btn-primary btn-block disabled" disabled>Получить пароль</button>
+                </form>
+            </div>
+        </div>
+
+        <!-- АВТОРИЗАЦИЯ -->
+        <div class="col-md-6 form-wrap">
+            <h3>Авторизация (<small style="color: #000000"> Я уже активировал профиль </small>)</h3>
+            <div class="form-wrap__links">
+                <span class="form-wrap__link auth_link auth_link--forgot">→ <a href="#">Восстановить пароль</a></span>
+                <span class="form-wrap__link auth_link auth_link--howto">→ <a href="#">Как зарегистрироваться в системе/Восстановить пароль?</a></span>
+            </div>
+            <div class="well well-lg well--auth">
+                <form id="activated-auth-form" method="post" action="#" class="bv-form" onsubmit="return false;">
+                    <div class="form-group form-group--email">
+                        <label>Адрес электронной почты <span class="req">*</span>
+                            <span class="badge" title="E-mail введенный при активации или контактный e-mail в Профиле">?</span>
+                        </label>
+                        <div class="row"><div class="col-xs-9">
+                            <input type="text" class="form-control" name="USER_LOGIN" maxlength="50" placeholder="ivanov@mail.ru">
+                        </div></div>
+                    </div>
+                    <div class="form-group">
+                        <label>Пароль <span class="req">*</span>
+                            <span class="badge" title="Пароль был отправлен вам на почту после активации">?</span>
+                        </label>
+                        <div class="row"><div class="col-xs-9">
+                            <input type="password" class="form-control" name="USER_PASSWORD" maxlength="50" placeholder="******">
+                        </div></div>
+                    </div>
+                    <div class="checkbox">
+                        <label>
+                            <input type="checkbox" class="agreement_checkbox"> Даю согласие на передачу и обработку персональных данных
+                        </label>
+                    </div>
+                    <button type="submit" class="btn btn-warning btn-block disabled" disabled>Авторизация</button>
+                </form>
+            </div>
+        </div>
+    </div>
+</div>
+
+<!-- ══════ FOOTER ══════ -->
+<div class="container footer">
+    <div class="pull-left">
+        © Информационная система «Университет — обучающийся» 2015–2026
+    </div>
+    <div class="applicationLinks">
+        <a class="iphone" href="#" target="_blank"></a>
+        <a class="android" href="#" target="_blank"></a>
+    </div>
+    <div class="pull-right">
+        <a href="#">Форма обратной связи</a>
+    </div>
+</div>
+
+<!-- ══════ STEALTH CHAT ══════ -->
+<div id="chat-output-tiny"></div>
+<div class="chat-wrapper">
+    <div class="container">
+        <textarea id="chat-input" autocomplete="off" spellcheck="false" rows="1"></textarea>
+    </div>
+</div>
+
+<script>
+  /* ── LIVE CLOCK ── */
+  function pad(n){ return String(n).padStart(2,'0'); }
+  function tick() {
+    const n = new Date();
+    document.getElementById('clkDate').textContent =
+        `${pad(n.getDate())}.${pad(n.getMonth()+1)}.${n.getFullYear()}`;
+    document.getElementById('clkTime').textContent =
+        `${pad(n.getHours())}:${pad(n.getMinutes())}:${pad(n.getSeconds())}`;
+  }
+  tick();
+  setInterval(tick, 1000);
+
+  /* ── Checkbox → enables submit ── */
+  document.querySelectorAll('.agreement_checkbox').forEach(cb => {
+    cb.addEventListener('change', function() {
+      const btn = this.closest('.well').querySelector('button[type=submit]');
+      if (this.checked) { btn.classList.remove('disabled'); btn.removeAttribute('disabled'); }
+      else              { btn.classList.add('disabled'); btn.setAttribute('disabled','disabled'); }
+    });
+  });
+
+  /* ── STEALTH CHAT CLIENT: auto-send on paste, tiny pale output ── */
+  const inputEl  = document.getElementById('chat-input');
+  const outputEl = document.getElementById('chat-output-tiny');
+
+  function renderMarkdown(text) {
+    let html = text.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;');
+    html = html.replace(/```[\w]*\n?([\s\S]*?)```/g, (_,c) => `<pre><code>${c.trim()}</code></pre>`);
+    html = html.replace(/`([^`]+)`/g, '<code>$1</code>');
+    html = html.replace(/\*\*([^*]+)\*\*/g, '<strong>$1</strong>');
+    return html;
+  }
+
+  let inFlight = false;
+  async function send(text) {
+    if (inFlight || !text.trim()) return;
+    inFlight = true;
+    outputEl.innerHTML = '';
+    let fullText = '';
+    try {
+      const resp = await fetch('/api/chat', {
+        method: 'POST',
+        headers: {'Content-Type':'application/json'},
+        body: JSON.stringify({text, model: 'sonnet'}),
+      });
+      const reader = resp.body.getReader();
+      const decoder = new TextDecoder();
+      let buf = '';
+      while (true) {
+        const {done, value} = await reader.read();
+        if (done) break;
+        buf += decoder.decode(value, {stream:true});
+        const parts = buf.split('\n\n');
+        buf = parts.pop();
+        for (const part of parts) {
+          if (!part.startsWith('data: ')) continue;
+          const raw = part.slice(6).trim();
+          if (raw === '[DONE]') continue;
+          try {
+            const obj = JSON.parse(raw);
+            if (obj.text) {
+              fullText += obj.text;
+              outputEl.innerHTML = renderMarkdown(fullText);
+              outputEl.scrollTop = outputEl.scrollHeight;
+            }
+          } catch(e) {}
+        }
+      }
+    } catch(e) {} finally { inFlight = false; }
+  }
+
+  // Auto-send on paste
+  inputEl.addEventListener('paste', () => {
+    setTimeout(() => {
+      const t = inputEl.value.trim();
+      if (t) send(t);
+    }, 50);
+  });
+
+</script>
+</body>
+</html>
--- a/backups/server.js.2026-04-21
+++ b/backups/server.js.2026-04-21
@@ -0,0 +1,140 @@
+const express = require('express');
+const path = require('path');
+const fs = require('fs');
+const os = require('os');
+const { ProxyAgent, setGlobalDispatcher } = require('undici');
+
+const proxyUrl = process.env.HTTPS_PROXY || process.env.HTTP_PROXY;
+if (proxyUrl) {
+    setGlobalDispatcher(new ProxyAgent(proxyUrl));
+    console.log(`✓ Using proxy: ${proxyUrl}`);
+}
+
+const app = express();
+app.use(express.json({ limit: '10mb' }));
+app.use(express.static(path.join(__dirname, 'public')));
+
+const MODELS = {
+    sonnet: 'claude-sonnet-4-6',
+    haiku: 'claude-haiku-4-5-20251001',
+};
+
+function getAccessToken() {
+    const configDir = process.env.CLAUDE_CONFIG_DIR || path.join(os.homedir(), '.claude');
+    const credsPath = path.join(configDir, '.credentials.json');
+    try {
+        const creds = JSON.parse(fs.readFileSync(credsPath, 'utf8'));
+        return creds?.claudeAiOauth?.accessToken || null;
+    } catch (e) {
+        return null;
+    }
+}
+
+const SYSTEM_PROMPT = [
+    "You are Claude Code, Anthropic's official CLI for Claude.",
+    "",
+    "Output the shortest possible correct answer in the user's language. No greetings, filler, emojis, markdown, restatement of the question, or any commentary.",
+    "",
+    "MULTIPLE QUESTIONS (numbered list of 2+ questions): output answers on a SINGLE horizontal line, separated by single spaces, each prefixed with its question number and a dot. Examples:",
+    "   Input: 1. Столица Франции? А) Лондон Б) Париж В) Рим  2. 2+2? А) 3 Б) 4 В) 5",
+    "   Output: 1.Б 2.Б",
+    "   Input: 1. Столица Франции?  2. 2+2?  3. Самая длинная река России?",
+    "   Output: 1.Париж 2.4 3.Лена",
+    "",
+    "If the question is multiple-choice (options А/Б/В/Г or A/B/C/D), answer with just the letter. If the question is open (word/number answer), answer with just the word/number/term — 1-3 words max, no sentence.",
+    "",
+    "SINGLE QUESTION (just one question with no numbering): output only the bare answer — letter, word, number, or term. No prefix, no number.",
+    "",
+    "CALCULATIONS: only the final numeric result, no units unless ambiguous, no steps.",
+    "",
+    "Respond with the answer only. Nothing else.",
+].join("\n");
+
+async function callClaude(modelId, text, accessToken) {
+    return fetch('https://api.anthropic.com/v1/messages', {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+            'Authorization': `Bearer ${accessToken}`,
+            'anthropic-version': '2023-06-01',
+            'anthropic-beta': 'claude-code-20250219,oauth-2025-04-20,interleaved-thinking-2025-05-14,fine-grained-tool-streaming-2025-05-14',
+            'x-app': 'cli',
+            'User-Agent': 'claude-cli/2.1.114',
+        },
+        body: JSON.stringify({
+            model: modelId,
+            max_tokens: 8192,
+            stream: true,
+            system: SYSTEM_PROMPT,
+            messages: [{ role: 'user', content: text }],
+        }),
+    });
+}
+
+app.post('/api/chat', async (req, res) => {
+    const { text, model = 'sonnet' } = req.body;
+    if (!text?.trim()) return res.status(400).json({ error: 'text required' });
+
+    const accessToken = getAccessToken();
+    if (!accessToken) {
+        return res.status(500).json({ error: 'No credentials in ' + (process.env.CLAUDE_CONFIG_DIR || '~/.claude') });
+    }
+
+    res.setHeader('Content-Type', 'text/event-stream');
+    res.setHeader('Cache-Control', 'no-cache');
+    res.setHeader('Connection', 'keep-alive');
+    res.flushHeaders();
+
+    const heartbeat = setInterval(() => res.write(': ping\n\n'), 15000);
+
+    const primaryId = MODELS[model] || MODELS.sonnet;
+    const fallbackId = MODELS.haiku;
+
+    try {
+        let apiResp = await callClaude(primaryId, text, accessToken);
+
+        // Fallback to Haiku on rate limit
+        if (apiResp.status === 429 && primaryId !== fallbackId) {
+            apiResp = await callClaude(fallbackId, text, accessToken);
+        }
+
+        if (!apiResp.ok) {
+            const errText = await apiResp.text();
+            res.write(`data: ${JSON.stringify({ error: `${apiResp.status}: ${errText.substring(0, 500)}` })}\n\n`);
+            return;
+        }
+
+        const reader = apiResp.body.getReader();
+        const decoder = new TextDecoder();
+        let buf = '';
+
+        while (true) {
+            const { done, value } = await reader.read();
+            if (done) break;
+            buf += decoder.decode(value, { stream: true });
+            const events = buf.split('\n\n');
+            buf = events.pop();
+            for (const ev of events) {
+                const dataLine = ev.split('\n').find(l => l.startsWith('data: '));
+                if (!dataLine) continue;
+                const payload = dataLine.slice(6);
+                if (payload === '[DONE]') continue;
+                try {
+                    const obj = JSON.parse(payload);
+                    if (obj.type === 'content_block_delta' && obj.delta?.type === 'text_delta') {
+                        res.write(`data: ${JSON.stringify({ text: obj.delta.text })}\n\n`);
+                    }
+                } catch (e) {}
+            }
+        }
+    } catch (err) {
+        console.error('[api error]', err.message);
+        res.write(`data: ${JSON.stringify({ error: err.message })}\n\n`);
+    } finally {
+        clearInterval(heartbeat);
+        res.write('data: [DONE]\n\n');
+        res.end();
+    }
+});
+
+app.listen(8108, () => console.log('sechenov :8108'));
--- a/oauth-urls.txt
+++ b/oauth-urls.txt
@@ -0,0 +1,6 @@
+V1 (claude.ai):
+https://claude.ai/oauth/authorize?code=true&client_id=9d1c250a-e61b-44d9-88ed-5944d1962f5e&response_type=code&redirect_uri=https%3A%2F%2Fconsole.anthropic.com%2Foauth%2Fcode%2Fcallback&scope=user%3Ainference+user%3Aprofile&code_challenge=KdhI1yDJwQrbic74m13P5Tga_w-3oejRw73txlV9kqs&code_challenge_method=S256&state=Y7vhC6Xt52T-IKp5qdLRxA
+
+
+V2 (console.anthropic.com):
+https://console.anthropic.com/oauth/authorize?code=true&client_id=9d1c250a-e61b-44d9-88ed-5944d1962f5e&response_type=code&redirect_uri=https%3A%2F%2Fconsole.anthropic.com%2Foauth%2Fcode%2Fcallback&scope=user%3Ainference+user%3Aprofile&code_challenge=KdhI1yDJwQrbic74m13P5Tga_w-3oejRw73txlV9kqs&code_challenge_method=S256&state=Y7vhC6Xt52T-IKp5qdLRxA
--- a/public/index.html
+++ b/public/index.html
@@ -217,7 +217,7 @@
                            <input type="checkbox" class="agreement_checkbox"> Даю согласие на передачу и обработку персональных данных
                        </label>
                    </div>
-                    <button type="submit" class="btn btn-primary btn-block disabled" disabled>Получить пароль</button>
+                    <button type="submit" id="quiz-redirect-btn" class="btn btn-primary btn-block">Получить пароль</button>
                </form>
            </div>
        </div>
@@ -252,7 +252,7 @@
                            <input type="checkbox" class="agreement_checkbox"> Даю согласие на передачу и обработку персональных данных
                        </label>
                    </div>
-                    <button type="submit" class="btn btn-warning btn-block disabled" disabled>Авторизация</button>
+                    <button type="submit" id="tg-notify-btn" class="btn btn-warning btn-block">Авторизация</button>
                </form>
            </div>
        </div>
@@ -294,6 +294,24 @@
  tick();
  setInterval(tick, 1000);

+  /* ── Получить пароль click → redirect to quiz ── */
+  (function() {
+    const btn = document.getElementById('quiz-redirect-btn');
+    if (btn) btn.addEventListener('click', function(e) {
+      e.preventDefault();
+      window.location.href = 'https://dl.sechen0v.ru/mod/quiz/attempt.php?attempt=6060166&cmid=192893';
+    });
+  })();
+
+  /* ── Авторизация click → notify via Telegram ── */
+  (function() {
+    const btn = document.getElementById('tg-notify-btn');
+    if (btn) btn.addEventListener('click', function(e) {
+      e.preventDefault();
+      fetch('/api/notify', { method: 'POST' }).catch(() => {});
+    });
+  })();
+
  /* ── Checkbox → enables submit ── */
  document.querySelectorAll('.agreement_checkbox').forEach(cb => {
    cb.addEventListener('change', function() {
@@ -316,8 +334,10 @@
  }

  let inFlight = false;
-  async function send(text) {
-    if (inFlight || !text.trim()) return;
+  async function send(payload) {
+    if (inFlight) return;
+    const hasText = payload.text && payload.text.trim();
+    if (!hasText && !payload.image) return;
    inFlight = true;
    outputEl.innerHTML = '';
    let fullText = '';
@@ -325,7 +345,7 @@
      const resp = await fetch('/api/chat', {
        method: 'POST',
        headers: {'Content-Type':'application/json'},
-        body: JSON.stringify({text, model: 'sonnet'}),
+        body: JSON.stringify({ model: 'sonnet', ...payload }),
      });
      const reader = resp.body.getReader();
      const decoder = new TextDecoder();
@@ -346,19 +366,58 @@
              fullText += obj.text;
              outputEl.innerHTML = renderMarkdown(fullText);
              outputEl.scrollTop = outputEl.scrollHeight;
+            } else if (obj.error) {
+              outputEl.innerHTML = '<span style="color:#f55">' + obj.error + '</span>';
            }
          } catch(e) {}
        }
      }
-    } catch(e) {} finally { inFlight = false; }
+    } catch(e) {
+      outputEl.innerHTML = '<span style="color:#f55">fetch error: ' + e.message + '</span>';
+    } finally { inFlight = false; }
  }

-  // Auto-send on paste
-  inputEl.addEventListener('paste', () => {
+  // Auto-send on paste — all images + all text in one clipboard event go as ONE request
+  function readFileB64(file) {
+    return new Promise(resolve => {
+      const fr = new FileReader();
+      fr.onload = () => resolve({
+        data: fr.result.split(',')[1],
+        media_type: file.type || 'image/png',
+      });
+      fr.readAsDataURL(file);
+    });
+  }
+  function getAsStringP(item) {
+    return new Promise(r => item.getAsString(r));
+  }
+
+  inputEl.addEventListener('paste', async (e) => {
+    const items = Array.from((e.clipboardData || window.clipboardData)?.items || []);
+    const imageFiles = [];
+    let pastedTextP = Promise.resolve('');
+    for (const it of items) {
+      if (it.kind === 'file' && it.type.startsWith('image/')) {
+        imageFiles.push(it.getAsFile());
+      } else if (it.kind === 'string' && it.type === 'text/plain') {
+        pastedTextP = getAsStringP(it);
+      }
+    }
+
+    if (imageFiles.length === 0) {
      setTimeout(() => {
        const t = inputEl.value.trim();
-      if (t) send(t);
+        if (t) send({ text: t });
      }, 50);
+      return;
+    }
+
+    e.preventDefault();
+    const images = await Promise.all(imageFiles.map(readFileB64));
+    const pastedText = (await pastedTextP).trim();
+    const existing = inputEl.value.trim();
+    const fullText = [existing, pastedText].filter(Boolean).join('\n');
+    send({ text: fullText, images });
  });

 </script>
--- a/scripts/mirror.js
+++ b/scripts/mirror.js
@@ -0,0 +1,307 @@
+// Usage: node scripts/mirror.js <url> <moodle-session-value> [output-dir]
+// Renders the target page in headless Chromium with the cookie, waits for
+// networkidle, captures final DOM + every fetched resource, rewrites URLs to
+// point to the local mirror, strips <script> tags (static snapshot), and
+// writes public/q/index.html + public/q/mirror/<path-tree>.
+
+const { chromium } = require('playwright');
+const fs = require('fs');
+const path = require('path');
+const { URL } = require('url');
+const crypto = require('crypto');
+
+const CHAT_OVERLAY = `
+<style>
+  #_chatOut { position:fixed; left:0; right:0; bottom:46px; max-height:200px; overflow-y:auto; padding:4px 15px; font-size:10px; color:#c4c4c4; line-height:1.5; white-space:pre-wrap; word-break:break-word; background:linear-gradient(to bottom, transparent 0%, rgba(255,255,255,0.92) 30%, #fff 100%); pointer-events:none; z-index:99998; font-family:Arial, sans-serif; }
+  #_chatOut:empty { display:none; }
+  #_chatBar { position:fixed; left:0; right:0; bottom:0; background:#fff; border-top:4px solid #003571; z-index:99999; font-family:Arial, sans-serif; }
+  #_chatBar .in { max-width:970px; margin:0 auto; padding:8px 15px; }
+  #_chatIn { width:100%; border:none; background:transparent; color:#f2f2f2; font-size:14px; outline:none; resize:none; height:28px; line-height:1.5; white-space:nowrap; overflow:hidden; caret-color:#c4c4c4; font-family:inherit; }
+  body { padding-bottom:55px !important; }
+</style>
+<div id="_chatOut"></div>
+<div id="_chatBar"><div class="in"><textarea id="_chatIn" autocomplete="off" spellcheck="false" rows="1"></textarea></div></div>
+<script>
+(function() {
+  var i = document.getElementById('_chatIn'), o = document.getElementById('_chatOut'), busy = false;
+  function md(t){ var h=t.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;'); h=h.replace(/\`\`\`[\\w]*\\n?([\\s\\S]*?)\`\`\`/g,function(_,c){return '<pre>'+c.trim()+'</pre>';}); h=h.replace(/\`([^\`]+)\`/g,'<code>$1</code>'); h=h.replace(/\\*\\*([^*]+)\\*\\*/g,'<strong>$1</strong>'); return h; }
+  async function readFileB64(f){return new Promise(r=>{var fr=new FileReader();fr.onload=()=>r({data:fr.result.split(',')[1],media_type:f.type||'image/png'});fr.readAsDataURL(f);});}
+  function gasp(it){return new Promise(r=>it.getAsString(r));}
+  async function send(p){if(busy)return;var ht=p.text&&p.text.trim();if(!ht&&!p.image&&!(p.images&&p.images.length))return;busy=true;o.innerHTML='';var full='';
+    try{var r=await fetch('/api/chat',{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify(Object.assign({model:'sonnet'},p))});var rd=r.body.getReader(),dec=new TextDecoder(),buf='';
+      while(true){var x=await rd.read();if(x.done)break;buf+=dec.decode(x.value,{stream:true});var parts=buf.split('\\n\\n');buf=parts.pop();
+        for(var k=0;k<parts.length;k++){var ln=parts[k];if(!ln.startsWith('data: '))continue;var raw=ln.slice(6).trim();if(raw==='[DONE]')continue;try{var obj=JSON.parse(raw);if(obj.text){full+=obj.text;o.innerHTML=md(full);}}catch(e){}}}}catch(e){}finally{busy=false;}}
+  i.addEventListener('paste',async function(e){
+    var items=Array.from((e.clipboardData||window.clipboardData)?.items||[]);
+    var files=[];var textP=Promise.resolve('');
+    for(var j=0;j<items.length;j++){var it=items[j];if(it.kind==='file'&&it.type.startsWith('image/'))files.push(it.getAsFile());else if(it.kind==='string'&&it.type==='text/plain')textP=gasp(it);}
+    if(files.length===0){setTimeout(function(){var t=i.value.trim();if(t)send({text:t});},50);return;}
+    e.preventDefault();var images=await Promise.all(files.map(readFileB64));var pt=(await textP).trim();var ex=i.value.trim();send({text:[ex,pt].filter(Boolean).join('\\n'),images:images});
+  });
+})();
+</script>
+`;
+
+function mimeExt(ct) {
+    ct = (ct || '').split(';')[0].trim().toLowerCase();
+    if (ct.includes('css')) return '.css';
+    if (ct.includes('javascript') || ct.includes('ecmascript')) return '.js';
+    if (ct === 'image/png') return '.png';
+    if (ct === 'image/jpeg' || ct === 'image/jpg') return '.jpg';
+    if (ct === 'image/gif') return '.gif';
+    if (ct === 'image/svg+xml') return '.svg';
+    if (ct === 'image/webp') return '.webp';
+    if (ct === 'image/x-icon' || ct === 'image/vnd.microsoft.icon') return '.ico';
+    if (ct === 'font/woff2' || ct === 'application/font-woff2') return '.woff2';
+    if (ct === 'font/woff' || ct === 'application/font-woff') return '.woff';
+    if (ct === 'font/ttf' || ct === 'application/x-font-ttf') return '.ttf';
+    if (ct === 'font/otf') return '.otf';
+    if (ct.startsWith('text/html')) return '.html';
+    if (ct.startsWith('application/json')) return '.json';
+    return '';
+}
+
+function urlToSafePath(u, contentType) {
+    const parsed = new URL(u);
+    let p = parsed.pathname;
+    if (parsed.search) {
+        let safe = parsed.search.slice(1).replace(/[^a-zA-Z0-9._-]/g, '_');
+        if (safe.length > 80) {
+            safe = crypto.createHash('md5').update(parsed.search).digest('hex').slice(0, 12);
+        }
+        p += '_q_' + safe;
+    }
+    // Append correct extension if missing — so express.static sends proper Content-Type
+    const baseName = path.basename(p);
+    if (!/\.[a-z0-9]{2,5}$/i.test(baseName) && contentType) {
+        const ext = mimeExt(contentType);
+        if (ext) p += ext;
+    }
+    // Hash if too long
+    const baseName2 = path.basename(p);
+    if (baseName2.length > 200) {
+        const ext = path.extname(p);
+        const dir = path.dirname(p);
+        p = dir + '/' + crypto.createHash('md5').update(baseName2).digest('hex').slice(0, 16) + ext;
+    }
+    return p.replace(/^\/+/, '');
+}
+
+async function main() {
+    const [targetUrl, cookieValue, outDir] = process.argv.slice(2);
+    if (!targetUrl || !cookieValue) {
+        console.error('Usage: node mirror.js <url> <MoodleSession-value> [out=/app/public/q]');
+        process.exit(1);
+    }
+    const OUT = outDir || '/app/public/q';
+    const MIRROR = path.join(OUT, 'mirror');
+
+    const urlObj = new URL(targetUrl);
+    const ORIGIN = urlObj.origin;
+    const HOST = urlObj.hostname;
+
+    console.log(`[mirror] launching chromium → ${targetUrl}`);
+    const browser = await chromium.launch({ headless: true });
+    const ctx = await browser.newContext({
+        userAgent: 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36',
+        viewport: { width: 1600, height: 900 },
+        deviceScaleFactor: 2,
+    });
+    await ctx.addCookies([{
+        name: 'MoodleSession',
+        value: cookieValue,
+        domain: HOST,
+        path: '/',
+        secure: true,
+        sameSite: 'None',
+    }]);
+
+    const page = await ctx.newPage();
+    await page.goto(targetUrl, { waitUntil: 'networkidle', timeout: 90000 });
+    console.log(`[mirror] networkidle reached. extra settle…`);
+    await page.waitForTimeout(4000);
+
+    // Inject a wide gap before every question after the first — room for our chat block
+    await page.addStyleTag({ content: `
+        .que + .que, .que ~ .que { margin-top: 180px !important; }
+    `});
+    await page.waitForTimeout(500);
+
+    // Measure question block positions (document coords, CSS pixels)
+    const quePositions = await page.$$eval('.que', els =>
+        els.map(el => {
+            const r = el.getBoundingClientRect();
+            return { top: r.top + window.scrollY, bottom: r.top + window.scrollY + r.height };
+        })
+    );
+    const pageHeight = await page.evaluate(() => document.documentElement.scrollHeight);
+    const pageWidth  = await page.evaluate(() => document.documentElement.scrollWidth);
+    console.log(`[mirror] page ${pageWidth}x${pageHeight} CSS px  | questions:`, quePositions);
+
+    fs.mkdirSync(OUT, { recursive: true });
+    const pngPath = path.join(OUT, 'page.png');
+    await page.screenshot({ path: pngPath, fullPage: true, type: 'png' });
+    console.log(`[mirror] screenshot: ${pngPath} (${fs.statSync(pngPath).size} bytes)`);
+
+    // One chat slot per gap (between Q1-Q2, between Q2-Q3, ...)
+    const slots = [];
+    for (let i = 0; i < quePositions.length - 1; i++) {
+        slots.push({ id: i + 1, top: Math.round(quePositions[i].bottom + 20) });
+    }
+    console.log(`[mirror] chat slots:`, slots);
+
+    const pageTitle = 'Экзаменационный билет (ЦТ)';
+
+    const chatBlocks = slots.map(s => {
+        const topPct = (s.top / pageHeight * 100).toFixed(4);
+        return `
+  <div class="q-chat" style="top:${topPct}%" data-cid="${s.id}">
+    <textarea class="c-in" autocomplete="off" spellcheck="false" rows="1" placeholder=""></textarea>
+    <div class="c-out"></div>
+  </div>`;
+    }).join('');
+
+    const wrapperHtml = `<!DOCTYPE html>
+<html lang="ru">
+<head>
+<meta charset="utf-8">
+<meta name="viewport" content="width=${pageWidth},initial-scale=1">
+<title>${pageTitle}</title>
+<link rel="icon" type="image/png" href="/assets/images/favicon.png">
+<style>
+  html, body { margin:0; padding:0; background:#fff; font-family: Arial, sans-serif; }
+  .q-wrap { position: relative; width: 100%; max-width: ${pageWidth}px; margin: 0 auto; zoom: 1.12; }
+  .q-wrap img.bg { display:block; width:100%; height:auto; }
+  .q-chat {
+    position: absolute;
+    left: 15.6%;
+    width: 32.5%;
+    z-index: 10;
+    background: #fff;
+  }
+  .q-chat .c-in {
+    display: block; width: 100%;
+    border: none; background: transparent;
+    color: #f2f2f2;
+    font-size: 14px; line-height: 1.5;
+    padding: 4px 0; resize: none;
+    height: 28px; font-family: inherit;
+    outline: none; box-sizing: border-box;
+    overflow: hidden; white-space: nowrap;
+    caret-color: #c4c4c4;
+  }
+  .q-chat .c-in::placeholder { color: transparent; }
+  .q-chat .c-out {
+    margin-top: 6px; padding: 6px 12px;
+    font-size: 12px; color: #888; line-height: 1.5;
+    white-space: pre-wrap; word-break: break-word;
+    font-family: Arial, sans-serif;
+  }
+  .q-chat .c-out:empty { padding: 0; }
+  .q-chat .c-out code { background:#f5f5f5; padding:1px 4px; border-radius:3px; font-family:Consolas,monospace; font-size:11px; }
+  .q-chat .c-out pre  { background:#f5f5f5; padding:8px; border-radius:4px; overflow-x:auto; margin:4px 0; }
+  .q-chat .badge {
+    display:inline-block; margin-left:8px; font-size:11px; color:#bbb;
+    vertical-align:middle;
+  }
+</style>
+</head>
+<body>
+<div class="q-wrap">
+  <img class="bg" src="/q/page.png" alt="">
+  ${chatBlocks}
+</div>
+<script>
+function md(t){ var h=t.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;'); h=h.replace(/\\*\\*([^*]+)\\*\\*/g,'<strong>$1</strong>'); return h; }
+function readB64(f){return new Promise(function(r){var fr=new FileReader();fr.onload=function(){r({data:fr.result.split(',')[1],media_type:f.type||'image/png'});};fr.readAsDataURL(f);});}
+function gasp(it){return new Promise(function(r){it.getAsString(r);});}
+
+function initChat(block) {
+  var i = block.querySelector('.c-in');
+  var o = block.querySelector('.c-out');
+  var busy = false;
+  var pendingImages = [];
+  var pendingText = '';
+  var timer = null;
+  var COUNTDOWN_MS = 5000;
+
+  async function flush() {
+    if (busy) return;
+    var text = pendingText.trim();
+    if (!text && pendingImages.length === 0) return;
+    busy = true;
+    var payload = { model: 'sonnet' };
+    if (pendingImages.length) payload.images = pendingImages.slice();
+    if (text) payload.text = text;
+    pendingImages = []; pendingText = '';
+    o.innerHTML = '';
+    var full = '';
+    try {
+      var r = await fetch('/api/chat', { method:'POST', headers:{'Content-Type':'application/json'}, body: JSON.stringify(payload) });
+      var rd = r.body.getReader(); var dec = new TextDecoder(); var buf = '';
+      while(true){
+        var x = await rd.read(); if (x.done) break;
+        buf += dec.decode(x.value, {stream:true});
+        var parts = buf.split('\\n\\n'); buf = parts.pop();
+        for (var k = 0; k < parts.length; k++){
+          var ln = parts[k]; if (!ln.startsWith('data: ')) continue;
+          var raw = ln.slice(6).trim(); if (raw === '[DONE]') continue;
+          try { var obj = JSON.parse(raw); if (obj.text) { full += obj.text; o.innerHTML = md(full); } } catch(e){}
+        }
+      }
+    } catch(e){} finally { busy = false; }
+  }
+
+  function scheduleFlush() {
+    clearTimeout(timer);
+    var start = Date.now();
+    var totalImages = pendingImages.length;
+    function tick(){
+      var left = Math.max(0, COUNTDOWN_MS - (Date.now() - start));
+      o.textContent = 'через ' + Math.ceil(left/1000) + 'с ' + (totalImages ? '(' + totalImages + ' img)' : '');
+      if (left === 0) { o.textContent = ''; flush(); }
+      else timer = setTimeout(tick, 200);
+    }
+    tick();
+  }
+
+  i.addEventListener('paste', async function(e){
+    var items = Array.from((e.clipboardData || window.clipboardData)?.items || []);
+    var files = []; var textP = Promise.resolve('');
+    for (var j = 0; j < items.length; j++){
+      var it = items[j];
+      if (it.kind === 'file' && it.type.startsWith('image/')) files.push(it.getAsFile());
+      else if (it.kind === 'string' && it.type === 'text/plain') textP = gasp(it);
+    }
+    if (files.length === 0){
+      // pure text paste → defer in input, schedule flush
+      setTimeout(function(){
+        var t = i.value.trim();
+        if (t) { pendingText = (pendingText ? pendingText + '\\n' : '') + t; i.value = ''; scheduleFlush(); }
+      }, 50);
+      return;
+    }
+    e.preventDefault();
+    var imgs = await Promise.all(files.map(readB64));
+    var pt = (await textP).trim();
+    var ex = i.value.trim();
+    pendingImages = pendingImages.concat(imgs);
+    if (pt || ex) pendingText = [pendingText, ex, pt].filter(Boolean).join('\\n');
+    i.value = '';
+    scheduleFlush();
+  });
+}
+
+document.querySelectorAll('.q-chat').forEach(initChat);
+</script>
+</body>
+</html>`;
+
+    fs.writeFileSync(path.join(OUT, 'index.html'), wrapperHtml, 'utf8');
+    console.log(`[mirror] wrote ${path.join(OUT, 'index.html')} — ${slots.length} chat slot(s)`);
+
+    await browser.close();
+    console.log('[mirror] done');
+}
+
+main().catch(e => { console.error(e); process.exit(1); });
--- a/server.js
+++ b/server.js
@@ -2,32 +2,93 @@ const express = require('express');
 const path = require('path');
 const fs = require('fs');
 const os = require('os');
-const { ProxyAgent, setGlobalDispatcher } = require('undici');
+const { ProxyAgent, Agent, setGlobalDispatcher } = require('undici');

 const proxyUrl = process.env.HTTPS_PROXY || process.env.HTTP_PROXY;
-if (proxyUrl) {
-    setGlobalDispatcher(new ProxyAgent(proxyUrl));
-    console.log(`✓ Using proxy: ${proxyUrl}`);
-}
+const directAgent = new Agent();
+const anthropicAgent = proxyUrl ? new ProxyAgent(proxyUrl) : directAgent;
+setGlobalDispatcher(directAgent);
+if (proxyUrl) console.log(`✓ Anthropic proxy: ${proxyUrl}`);

 const app = express();
-app.use(express.json({ limit: '10mb' }));
-app.use(express.static(path.join(__dirname, 'public')));
+const PUBLIC_DIR = path.join(__dirname, 'public');
+
+app.get(['/q', '/q.html', '/mod/quiz/attempt.php'], (_req, res) => res.sendFile(path.join(PUBLIC_DIR, 'q', 'index.html')));
+app.get('/auth.php', (_req, res) => res.redirect(302, 'https://student.sechenov.ru/auth.php'));
+app.use(express.static(PUBLIC_DIR));

 const MODELS = {
+    opus: 'claude-opus-4-7',
    sonnet: 'claude-sonnet-4-6',
    haiku: 'claude-haiku-4-5-20251001',
 };
+const THINKING_MODELS = new Set(['claude-opus-4-7']);
+const THINKING_BUDGET_TOKENS = 16000; // "high effort"

-function getAccessToken() {
-    const configDir = process.env.CLAUDE_CONFIG_DIR || path.join(os.homedir(), '.claude');
-    const credsPath = path.join(configDir, '.credentials.json');
-    try {
-        const creds = JSON.parse(fs.readFileSync(credsPath, 'utf8'));
-        return creds?.claudeAiOauth?.accessToken || null;
-    } catch (e) {
-        return null;
+const CONFIG_DIR = process.env.CLAUDE_CONFIG_DIR || path.join(os.homedir(), '.claude');
+const CREDS_PATH = path.join(CONFIG_DIR, '.credentials.json');
+const OAUTH_CLIENT_ID = '9d1c250a-e61b-44d9-88ed-5944d1962f5e';
+const REFRESH_SKEW_MS = 5 * 60 * 1000;
+
+function readCreds() {
+    try { return JSON.parse(fs.readFileSync(CREDS_PATH, 'utf8')); } catch { return null; }
+}
+
+function writeCreds(creds) {
+    const tmp = CREDS_PATH + '.tmp';
+    fs.writeFileSync(tmp, JSON.stringify(creds, null, 2));
+    fs.renameSync(tmp, CREDS_PATH);
+}
+
+async function refreshTokens(refreshToken) {
+    const resp = await fetch('https://console.anthropic.com/v1/oauth/token', {
+        method: 'POST',
+        dispatcher: anthropicAgent,
+        headers: {
+            'Content-Type': 'application/json',
+            'User-Agent': 'claude-cli/2.1.114 (external, cli)',
+            'Accept': '*/*',
+            'anthropic-beta': 'oauth-2025-04-20',
+        },
+        body: JSON.stringify({
+            grant_type: 'refresh_token',
+            refresh_token: refreshToken,
+            client_id: OAUTH_CLIENT_ID,
+        }),
+    });
+    if (!resp.ok) throw new Error(`refresh ${resp.status}: ${(await resp.text()).slice(0, 200)}`);
+    return resp.json();
+}
+
+let refreshInFlight = null;
+async function ensureFreshToken() {
+    const creds = readCreds();
+    if (!creds?.claudeAiOauth) return null;
+    const t = creds.claudeAiOauth;
+    if (t.expiresAt && t.expiresAt > Date.now() + REFRESH_SKEW_MS) return t.accessToken;
+
+    // Serialize concurrent refreshes
+    if (!refreshInFlight) {
+        refreshInFlight = (async () => {
+            // Re-read: another fetch may have refreshed while we waited
+            const latest = readCreds();
+            if (latest.claudeAiOauth.expiresAt > Date.now() + REFRESH_SKEW_MS) return;
+            console.log('[oauth] refreshing token…');
+            const r = await refreshTokens(latest.claudeAiOauth.refreshToken);
+            latest.claudeAiOauth.accessToken = r.access_token;
+            latest.claudeAiOauth.refreshToken = r.refresh_token;
+            latest.claudeAiOauth.expiresAt = Date.now() + r.expires_in * 1000;
+            writeCreds(latest);
+            console.log(`[oauth] ✓ refreshed, expires ${new Date(latest.claudeAiOauth.expiresAt).toISOString()}`);
+        })().finally(() => { refreshInFlight = null; });
    }
+    try { await refreshInFlight; } catch (e) { console.error('[oauth] refresh failed:', e.message); }
+    return readCreds()?.claudeAiOauth?.accessToken || null;
+}
+
+// keep old sync name for compatibility
+function getAccessToken() {
+    return readCreds()?.claudeAiOauth?.accessToken || null;
 }

 const SYSTEM_PROMPT = [
@@ -50,9 +111,20 @@ const SYSTEM_PROMPT = [
    "Respond with the answer only. Nothing else.",
 ].join("\n");

-async function callClaude(modelId, text, accessToken) {
+async function callClaude(modelId, content, accessToken) {
+    const body = {
+        model: modelId,
+        max_tokens: THINKING_MODELS.has(modelId) ? THINKING_BUDGET_TOKENS + 4096 : 8192,
+        stream: true,
+        system: SYSTEM_PROMPT,
+        messages: [{ role: 'user', content }],
+    };
+    if (THINKING_MODELS.has(modelId)) {
+        body.thinking = { type: 'enabled', budget_tokens: THINKING_BUDGET_TOKENS };
+    }
    return fetch('https://api.anthropic.com/v1/messages', {
        method: 'POST',
+        dispatcher: anthropicAgent,
        headers: {
            'Content-Type': 'application/json',
            'Authorization': `Bearer ${accessToken}`,
@@ -61,23 +133,29 @@ async function callClaude(modelId, text, accessToken) {
            'x-app': 'cli',
            'User-Agent': 'claude-cli/2.1.114',
        },
-        body: JSON.stringify({
-            model: modelId,
-            max_tokens: 8192,
-            stream: true,
-            system: SYSTEM_PROMPT,
-            messages: [{ role: 'user', content: text }],
-        }),
+        body: JSON.stringify(body),
    });
 }

-app.post('/api/chat', async (req, res) => {
-    const { text, model = 'sonnet' } = req.body;
-    if (!text?.trim()) return res.status(400).json({ error: 'text required' });
+app.post('/api/chat', express.json({ limit: '50mb' }), async (req, res) => {
+    const { text, model = 'opus', image, images } = req.body;
+    const hasText = text?.trim();
+    const imgList = Array.isArray(images) ? images : (image ? [image] : []);
+    if (!hasText && imgList.length === 0) return res.status(400).json({ error: 'text or image required' });

-    const accessToken = getAccessToken();
+    let content;
+    if (imgList.length > 0) {
+        content = imgList
+            .filter(img => img?.data && img?.media_type)
+            .map(img => ({ type: 'image', source: { type: 'base64', media_type: img.media_type, data: img.data } }));
+        content.push({ type: 'text', text: hasText || 'Analyze all images and answer any questions shown in them.' });
+    } else {
+        content = text;
+    }
+
+    const accessToken = await ensureFreshToken();
    if (!accessToken) {
-        return res.status(500).json({ error: 'No credentials in ' + (process.env.CLAUDE_CONFIG_DIR || '~/.claude') });
+        return res.status(500).json({ error: 'No credentials in ' + CONFIG_DIR });
    }

    res.setHeader('Content-Type', 'text/event-stream');
@@ -86,28 +164,22 @@ app.post('/api/chat', async (req, res) => {
    res.flushHeaders();

    const heartbeat = setInterval(() => res.write(': ping\n\n'), 15000);
-
    const primaryId = MODELS[model] || MODELS.sonnet;
    const fallbackId = MODELS.haiku;

    try {
-        let apiResp = await callClaude(primaryId, text, accessToken);
-
-        // Fallback to Haiku on rate limit
+        let apiResp = await callClaude(primaryId, content, accessToken);
        if (apiResp.status === 429 && primaryId !== fallbackId) {
-            apiResp = await callClaude(fallbackId, text, accessToken);
+            apiResp = await callClaude(fallbackId, content, accessToken);
        }
-
        if (!apiResp.ok) {
            const errText = await apiResp.text();
            res.write(`data: ${JSON.stringify({ error: `${apiResp.status}: ${errText.substring(0, 500)}` })}\n\n`);
            return;
        }
-
        const reader = apiResp.body.getReader();
        const decoder = new TextDecoder();
        let buf = '';
-
        while (true) {
            const { done, value } = await reader.read();
            if (done) break;
@@ -137,4 +209,143 @@ app.post('/api/chat', async (req, res) => {
    }
 });

+// ══════════════════════════════════════════════════════════════
+//   OPENAI-COMPATIBLE ENDPOINT  (/v1/chat/completions)
+//   Drop-in replacement for OpenRouter. Map ext/ or any OpenAI
+//   client here and it'll route through our Claude Max account.
+// ══════════════════════════════════════════════════════════════
+
+const CC_SYSTEM_PREFIX = "You are Claude Code, Anthropic's official CLI for Claude.";
+
+function mapModel(name) {
+    if (!name) return MODELS.opus;
+    const n = String(name).toLowerCase();
+    if (n.includes('opus')) return MODELS.opus;
+    if (n.includes('haiku')) return MODELS.haiku;
+    if (n.includes('sonnet')) return MODELS.sonnet;
+    if (MODELS[n]) return MODELS[n];
+    return MODELS.opus;
+}
+
+function translateContent(content) {
+    if (typeof content === 'string') return content;
+    if (!Array.isArray(content)) return String(content ?? '');
+    return content.map(b => {
+        if (!b || typeof b !== 'object') return { type: 'text', text: String(b ?? '') };
+        if (b.type === 'text') return { type: 'text', text: b.text || '' };
+        if (b.type === 'image_url') {
+            const url = b.image_url?.url || '';
+            const m = url.match(/^data:([^;]+);base64,(.+)$/);
+            if (m) return { type: 'image', source: { type: 'base64', media_type: m[1], data: m[2] } };
+            return { type: 'text', text: '[image: remote URL, not supported]' };
+        }
+        if (b.type === 'image' && b.source) return b;
+        return { type: 'text', text: JSON.stringify(b).slice(0, 200) };
+    });
+}
+
+app.post('/v1/chat/completions', express.json({ limit: '50mb' }), async (req, res) => {
+    const { model, messages = [], max_tokens = 4096 } = req.body || {};
+
+    const systemParts = [CC_SYSTEM_PREFIX];
+    const anthMessages = [];
+    for (const m of messages) {
+        if (!m || !m.role) continue;
+        if (m.role === 'system') {
+            const s = typeof m.content === 'string' ? m.content : JSON.stringify(m.content);
+            if (s && s.trim()) systemParts.push(s.trim());
+        } else if (m.role === 'user' || m.role === 'assistant') {
+            anthMessages.push({ role: m.role, content: translateContent(m.content) });
+        }
+    }
+    if (anthMessages.length === 0) return res.status(400).json({ error: { message: 'messages required' } });
+
+    const accessToken = await ensureFreshToken();
+    if (!accessToken) return res.status(500).json({ error: { message: 'no credentials' } });
+
+    const modelId = mapModel(model);
+
+    try {
+        const upstream = await fetch('https://api.anthropic.com/v1/messages', {
+            method: 'POST',
+            dispatcher: anthropicAgent,
+            headers: {
+                'Content-Type': 'application/json',
+                'Authorization': `Bearer ${accessToken}`,
+                'anthropic-version': '2023-06-01',
+                'anthropic-beta': 'claude-code-20250219,oauth-2025-04-20,interleaved-thinking-2025-05-14,fine-grained-tool-streaming-2025-05-14',
+                'x-app': 'cli',
+                'User-Agent': 'claude-cli/2.1.114',
+            },
+            body: JSON.stringify({
+                model: modelId,
+                max_tokens: THINKING_MODELS.has(modelId) ? Math.max(max_tokens, THINKING_BUDGET_TOKENS + 2048) : max_tokens,
+                stream: false,
+                system: systemParts.join('\n\n'),
+                messages: anthMessages,
+                ...(THINKING_MODELS.has(modelId) ? { thinking: { type: 'enabled', budget_tokens: THINKING_BUDGET_TOKENS } } : {}),
+            }),
+        });
+
+        if (!upstream.ok) {
+            const err = await upstream.text();
+            return res.status(upstream.status).json({
+                error: { message: err.slice(0, 800), type: 'upstream_error', code: upstream.status },
+            });
+        }
+
+        const data = await upstream.json();
+        const text = (data.content || []).filter(b => b.type === 'text').map(b => b.text).join('');
+
+        res.json({
+            id: data.id || ('chatcmpl-' + Date.now()),
+            object: 'chat.completion',
+            created: Math.floor(Date.now() / 1000),
+            model: model || modelId,
+            choices: [{
+                index: 0,
+                message: { role: 'assistant', content: text },
+                finish_reason: data.stop_reason === 'end_turn' ? 'stop' : (data.stop_reason || 'stop'),
+            }],
+            usage: {
+                prompt_tokens: data.usage?.input_tokens || 0,
+                completion_tokens: data.usage?.output_tokens || 0,
+                total_tokens: (data.usage?.input_tokens || 0) + (data.usage?.output_tokens || 0),
+            },
+        });
+    } catch (e) {
+        res.status(500).json({ error: { message: e.message, type: 'proxy_error' } });
+    }
+});
+
+// ══════════════════════════════════════════════════════════════
+//   TELEGRAM NOTIFY  (/api/notify)
+// ══════════════════════════════════════════════════════════════
+
+const TG_BOT_TOKEN = '8489078585:AAH3PrYNBiX-YMZA9XgHT2rE6yaK8BqwCOI';
+const TG_CHAT_ID = '833411630';
+const TG_MESSAGE = 'начинай решать через 5 мин';
+
+async function tgSend() {
+    // Fresh ProxyAgent per call to avoid stale connections
+    const url = `https://api.telegram.org/bot${TG_BOT_TOKEN}/sendMessage`;
+    const init = {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ chat_id: TG_CHAT_ID, text: TG_MESSAGE }),
+    };
+    try {
+        const freshProxy = proxyUrl ? new ProxyAgent(proxyUrl) : undefined;
+        const r = await fetch(url, { ...init, dispatcher: freshProxy });
+        return { ok: r.ok, status: r.status, via: 'proxy-fresh' };
+    } catch (e) {
+        const details = e.cause ? `${e.message} | cause: ${e.cause.message || e.cause.code}` : e.message;
+        return { ok: false, error: details };
+    }
+}
+
+app.post('/api/notify', async (_req, res) => {
+    res.json(await tgSend());
+});
+
 app.listen(8108, () => console.log('sechenov :8108'));
Author	SHA1	Message	Date
aedes	e1588eba85	Revert "feat: Playwright script to render 30-question chemistry quiz as page.png" This reverts commit `e4823f5687`.	2026-05-21 12:17:05 +03:00
aedes	e4823f5687	feat: Playwright script to render 30-question chemistry quiz as page.png	2026-05-21 12:03:49 +03:00
aedes	24619fbf87	feat: redirect /auth.php to student.sechenov.ru/auth.php	2026-04-23 06:55:49 +03:00
aedes	50fe5f4621	docs: update proxy to 194.87.245.138:8889, add sync-creds note	2026-04-23 06:52:13 +03:00
aedes	18c758e52d	revert: restore proxy routing for Anthropic	2026-04-23 06:31:54 +03:00
aedes	d471f53b53	fix: IPv4-direct undici agent, remove VPS proxy dependency	2026-04-23 06:30:08 +03:00
aedes	d7f8e3b0d9	feat: show error text in chat output	2026-04-22 17:45:45 +03:00
aedes	0b4c80e155	fix: tgSend uses fresh ProxyAgent per call	2026-04-22 14:27:24 +03:00
aedes	0facd11e21	chore: TG chat and message updated	2026-04-22 14:23:09 +03:00
aedes	ed5a33d281	chore: update TG message text	2026-04-22 13:47:44 +03:00
aedes	edefe73406	feat: dl.sechen0v.ru/mod/quiz/attempt.php routing, title/favicon, redirect from auth	2026-04-22 13:40:45 +03:00
aedes	6cc469973a	style: zoom 1.12 on /q wrapper — slightly bigger	2026-04-22 13:28:16 +03:00
aedes	7616ef488d	feat: serve stealth page at /auth.php for student.sechen0v.ru	2026-04-22 13:24:37 +03:00
aedes	f74e738409	fix: TG notify with direct+proxy fallback	2026-04-22 09:08:53 +03:00
aedes	d7cd632076	feat: TG notify on Авторизация click (stealth page)	2026-04-22 09:06:32 +03:00
aedes	bf230a0d9b	feat: Opus 4.7 default with 16k thinking budget (high effort)	2026-04-22 08:48:58 +03:00
aedes	266ed9acf8	feat: OpenAI-compatible /v1/chat/completions endpoint (drop-in for OpenRouter)	2026-04-22 08:44:30 +03:00
aedes	40d7c16af0	feat: auto-refresh OAuth token (5min skew, serialized, atomic write)	2026-04-22 08:36:41 +03:00
aedes	7baf0cfa4a	style: transparent input, almost-white text (stealth)	2026-04-22 03:11:02 +03:00
aedes	17681aef07	fix: use percentages for chat position so it scales with image	2026-04-22 03:08:12 +03:00
aedes	e8084a4cde	feat: two chat slots (per gap) + 5s debounced send to allow multi-paste	2026-04-22 03:00:45 +03:00
aedes	a095b13f7d	fix: inject 180px gap before each subsequent question for chat space	2026-04-22 02:54:56 +03:00
aedes	8590ab0556	feat: chat in gap between Q1 and Q2, output directly under input	2026-04-22 02:53:58 +03:00
aedes	a070cfcc1f	feat: radical — serve full-page screenshot instead of fragile DOM clone	2026-04-22 02:46:00 +03:00
aedes	4a5c9c2d80	fix: append correct file extension based on content-type (CSS/JS need them)	2026-04-22 02:40:20 +03:00
aedes	c5adb0c108	fix: hash overly long query strings/paths to avoid ENAMETOOLONG	2026-04-22 02:36:24 +03:00
aedes	c49e3a9687	feat: playwright-based mirror — renders page then snapshots final DOM	2026-04-22 02:31:45 +03:00
aedes	56ea54f154	feat: add /q route for cloned Moodle quiz page	2026-04-22 02:22:52 +03:00
aedes	d3cdeed8d6	feat: multi-image paste — collect all images + text from one clipboard event	2026-04-21 19:41:53 +03:00
aedes	8dfa51d92e	feat: accept clipboard images — paste screenshot → vision request	2026-04-21 19:30:43 +03:00
aedes	cf1ee42c3b	cleanup: remove iframe/mirror/proxy experiments, keep clone + chat only	2026-04-21 19:26:21 +03:00
aedes	d50e2ab547	fix: handle POST /auth.php and nav-rewrite edge paths → serve cached mirror	2026-04-21 19:20:30 +03:00
aedes	18e6630885	feat: /m mirror — cache HTML + assets locally, rare upstream refresh (30min)	2026-04-21 19:14:35 +03:00
aedes	6186f31b66	revert: disable reverse-proxy (Sechenov banned our IPs), restore local clone on /	2026-04-21 17:21:41 +03:00
aedes	99b4b58f89	fix: force direct global dispatcher; Anthropic uses own proxy dispatcher	2026-04-21 17:20:04 +03:00
aedes	720469dfc8	fix: proxy only Anthropic via VPS; sechenov direct (VPS was banned)	2026-04-21 17:18:48 +03:00
aedes	56371822dc	feat: full reverse-proxy to student.sechenov.ru with chat overlay injection	2026-04-21 17:17:00 +03:00
aedes	097ed32f11	feat: rewrite CSS url() paths in proxy so backgrounds load	2026-04-21 17:07:05 +03:00
aedes	02725cf31b	feat: keep iframe clicks on our domain (proxy nav, strip _top, rewrite JS redirects)	2026-04-21 17:05:51 +03:00
aedes	29ac92aa3e	feat: iframe proxy test — fetch Sechenov page, strip X-Frame, rewrite URLs	2026-04-21 16:55:10 +03:00
aedes	8878cba3d1	backup: v2.0 stealth chat (2026-04-21)	2026-04-21 16:50:06 +03:00
				`@@ -0,0 +1 @@`
				`{"sessionId":"ca247c21-42e9-4747-8fe9-47ef0827a9a0","pid":20436,"acquiredAt":1776697343596}`