managarten/apps/chat/CLAUDE.md

Chat Project Guide

Project Structure

apps/chat/
├── apps/
│   ├── backend/      # NestJS API server (@chat/backend)
│   ├── landing/      # Astro marketing landing page (@chat/landing)
│   ├── web/          # SvelteKit web application (@chat/web)
│   └── mobile/       # Expo/React Native mobile app (@chat/mobile)
├── packages/
│   └── chat-types/   # Shared TypeScript types (@chat/types)
└── package.json

Commands

Root Level

pnpm chat:dev                    # Run all chat apps
pnpm dev:chat:mobile             # Start mobile app
pnpm dev:chat:web                # Start web app
pnpm dev:chat:landing            # Start landing page
pnpm dev:chat:backend            # Start backend server
pnpm dev:chat:full               # Start backend + web + auth together

Mobile App (chat/apps/mobile)

pnpm dev                         # Start Expo dev server
pnpm ios                         # Run on iOS simulator
pnpm android                     # Run on Android emulator
pnpm build:dev                   # Build development version
pnpm build:preview               # Build preview version
pnpm build:prod                  # Build production version

Backend (apps/chat/apps/backend)

pnpm start:dev                   # Start with hot reload
pnpm build                       # Build for production
pnpm start:prod                  # Start production server
pnpm db:push                     # Push schema to database
pnpm db:seed                     # Seed AI models
pnpm db:studio                   # Open Drizzle Studio

Web App (chat/apps/web)

pnpm dev                         # Start dev server
pnpm build                       # Build for production
pnpm preview                     # Preview production build

Landing Page (chat/apps/landing)

pnpm dev                         # Start dev server
pnpm build                       # Build for production
pnpm preview                     # Preview production build

Technology Stack

• Mobile: React Native 0.76.7 + Expo SDK 52, NativeWind, Expo Router
• Web: SvelteKit 2.x, Svelte 5, Tailwind CSS 4
• Landing: Astro 5.16, Tailwind CSS
• Backend: NestJS 10, OpenRouter AI, Drizzle ORM, PostgreSQL
• Auth: Mana Core Auth (JWT)
• Types: TypeScript 5.x

Architecture

Backend API Endpoints

Endpoint	Method	Description
/api/v1/health	GET	Health check
/api/v1/chat/models	GET	List available AI models
/api/v1/chat/completions	POST	Create chat completion
/api/v1/conversations	GET	List user conversations
/api/v1/conversations/:id	GET	Get conversation details
/api/v1/conversations/:id/messages	GET	Get conversation messages
/api/v1/conversations	POST	Create new conversation
/api/v1/conversations/:id/messages	POST	Add message to conversation

Environment Variables

Backend (.env)

# Required - All AI models via OpenRouter
OPENROUTER_API_KEY=sk-or-v1-xxx    # Get at https://openrouter.ai/keys

# Database (uses shared Docker PostgreSQL)
DATABASE_URL=postgresql://manacore:devpassword@localhost:5432/chat

# Auth
MANA_CORE_AUTH_URL=http://localhost:3001

# Server
PORT=3002

Mobile (.env)

EXPO_PUBLIC_MANA_CORE_AUTH_URL=http://localhost:3001
EXPO_PUBLIC_BACKEND_URL=http://localhost:3002

Web (.env)

PUBLIC_MANA_CORE_AUTH_URL=http://localhost:3001
PUBLIC_BACKEND_URL=http://localhost:3002

Code Style Guidelines

• TypeScript: Strict typing with interfaces
• Mobile: Functional components with hooks
• Web: Svelte 5 runes mode
• Styling: Tailwind CSS everywhere
• Formatting: 100 char line limit, 2 space tabs, single quotes

AI Models Available (via OpenRouter)

All models are accessed through OpenRouter, providing access to 100+ models with a single API key.

Model ID	Name	Price	Best For
...440201	Llama 3.1 8B	$0.05/M	Everyday tasks (default)
...440202	Llama 3.1 70B	$0.35/M	Complex reasoning
...440203	DeepSeek V3	$0.14/M	Reasoning at low cost
...440204	Mistral Small	$0.10/M	General tasks
...440205	Claude 3.5 Sonnet	$3/M	Best quality
...440206	GPT-4o Mini	$0.15/M	Balanced performance

Quick Start

1. Get OpenRouter API key at https://openrouter.ai/keys
2. Create .env in apps/chat/apps/backend/:

   OPENROUTER_API_KEY=sk-or-v1-xxx
   DATABASE_URL=postgresql://manacore:devpassword@localhost:5432/chat
   MANA_CORE_AUTH_URL=http://localhost:3001
   PORT=3002
   

3. Start services:

   pnpm docker:up              # Start PostgreSQL
   pnpm dev:chat:full          # Start auth + backend + web
   

4. Seed database (first time only):

   pnpm --filter @chat/backend db:push
   pnpm --filter @chat/backend db:seed
   

Important Notes

1. Security: API keys are stored in the backend only - never in client apps
2. Authentication: Uses Mana Core Auth (JWT tokens)
3. Database: PostgreSQL with Drizzle ORM (uses shared Docker container)
4. Deployment: Backend runs on port 3002