feat(telegram-chat-bot): implement AI chat bot with multi-model support

- Add NestJS service with Telegraf for Telegram bot
- Implement commands: /models, /model, /new, /convos, /history, /clear
- Create Chat API client for completions and conversations
- Support multiple AI models (local Gemma + cloud via OpenRouter)
- Sync conversations with Chat web/mobile app
- Add message splitting for long responses
- Include Dockerfile, CLAUDE.md, and setup script

Commands:
- Send text → AI responds
- /models - List available models
- /model [name] - Switch model (gemma, claude, gpt, etc.)
- /new [title] - New conversation
- /convos - List conversations
- /history - Show recent messages
- /clear - Clear context

https://claude.ai/code/session_01LwmhvhKpEsvVtY1ZKhYu6f

services/telegram-chat-bot/package.json

@@ -0,0 +1,44 @@
+{
+	"name": "@manacore/telegram-chat-bot",
+	"version": "1.0.0",
+	"description": "Telegram bot for AI chat with multiple models and conversation history",
+	"private": true,
+	"license": "MIT",
+	"scripts": {
+		"prebuild": "rimraf dist",
+		"build": "nest build",
+		"format": "prettier --write \"src/**/*.ts\"",
+		"start": "nest start",
+		"start:dev": "nest start --watch",
+		"start:debug": "nest start --debug --watch",
+		"start:prod": "node dist/src/main",
+		"lint": "eslint \"{src,apps,libs,test}/**/*.ts\" --fix",
+		"type-check": "tsc --noEmit",
+		"db:generate": "drizzle-kit generate",
+		"db:push": "drizzle-kit push",
+		"db:studio": "drizzle-kit studio"
+	},
+	"dependencies": {
+		"@nestjs/common": "^10.4.15",
+		"@nestjs/config": "^3.3.0",
+		"@nestjs/core": "^10.4.15",
+		"@nestjs/platform-express": "^10.4.15",
+		"@nestjs/schedule": "^4.1.2",
+		"date-fns": "^4.1.0",
+		"date-fns-tz": "^3.2.0",
+		"drizzle-orm": "^0.38.3",
+		"nestjs-telegraf": "^2.8.0",
+		"postgres": "^3.4.5",
+		"reflect-metadata": "^0.2.2",
+		"rxjs": "^7.8.1",
+		"telegraf": "^4.16.3"
+	},
+	"devDependencies": {
+		"@nestjs/cli": "^10.4.9",
+		"@nestjs/schematics": "^10.2.3",
+		"@types/node": "^22.10.5",
+		"drizzle-kit": "^0.30.1",
+		"rimraf": "^6.0.1",
+		"typescript": "^5.7.3"
+	}
+}