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Spin up several explorer subagents to investigate this repo and understand it:

$ARGUMENTS

Output Format

Summarize with box diagrams showing key components and code:

┌─────────────────────────────────────┐
│ Entry Point (src/index.ts)          │
│                                     │
│ const app = express();              │
│ app.use(authMiddleware);            │
│ app.use('/api', apiRouter);         │
│ app.listen(3000);                   │
└──────────────────┬──────────────────┘
                   │
         ┌─────────┴─────────┐
         │                   │
         ▼                   ▼
┌─────────────────┐  ┌─────────────────┐
│ Auth Middleware │  │ API Router      │
│ (src/auth.ts)   │  │ (src/api.ts)    │
│                 │  │                 │
│ verifyToken()   │  │ /users          │
│ attachUser()    │  │ /posts          │
└─────────────────┘  └─────────────────┘

Include

1. Architecture diagram with boxes, arrows, and key code

2. Tech stack table:

   Layer	Technology
   API	Express
   DB	Prisma + Postgres

3. Key patterns observed (state machines, event bus, etc.)

4. Entry points with file:line references