Update project setup and remove unnecessary database requirements

Refactor README.md to remove database prerequisites and environmental variables, as the API server does not utilize the database.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 6f3329ae-2dcc-46cc-bf2e-f58b7a5fa805
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Event-Id: 9e23be68-a2a3-473e-9d7c-be900f23a459
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/e678fe28-87ab-4437-945b-7a15e872a292/6f3329ae-2dcc-46cc-bf2e-f58b7a5fa805/vRxTy2Z
Replit-Helium-Checkpoint-Created: true

README.md

@@ -10,7 +10,6 @@ Built with React + Vite (frontend) and Express 5 (API), running as a pnpm monore
 
 - **Node.js** 24+
 - **pnpm** 10+ — install via `npm install -g pnpm`
-- **PostgreSQL** 14+ — local installation or a hosted instance (e.g. Supabase, Neon, Railway)
 
 ---
 
@@ -32,9 +31,6 @@ pnpm install
 Create a `.env` file in the project root (or export the variables in your shell):
 
 ```env
-# PostgreSQL connection string (required)
-DATABASE_URL=postgresql://user:password@localhost:5432/portfolio
-
 # Session secret — any long random string (required)
 SESSION_SECRET=your-very-long-random-secret-here
 
@@ -46,16 +42,6 @@ BREVO_API_KEY=your-brevo-api-key
 
 ---
 
-## Database Setup
-
-Push the schema to your PostgreSQL database (run once, or after schema changes):
-
-```bash
-pnpm --filter @workspace/db run push
-```
-
----
-
 ## Running Locally
 
 Start both services in separate terminal windows:
@@ -76,10 +62,9 @@ Open **http://localhost:23924** in your browser.
 
 ```
 artifacts/
-  api-server/          # Express 5 API — contact form, health check
+  api-server/          # Express 5 API — contact form, email via Brevo
   joachim-portfolio/   # React + Vite frontend (portfolio site)
 lib/
-  db/                  # Drizzle ORM schema & migrations
   api-spec/            # OpenAPI spec + generated client hooks
   api-client-react/    # Generated React Query hooks (from Orval)
 scripts/               # Utility scripts
@@ -94,7 +79,6 @@ scripts/               # Utility scripts
 | `pnpm install` | Install all dependencies |
 | `pnpm run typecheck` | Full TypeScript check across all packages |
 | `pnpm run build` | Typecheck + build all packages |
-| `pnpm --filter @workspace/db run push` | Push DB schema changes (dev only) |
 | `pnpm --filter @workspace/api-spec run codegen` | Regenerate API hooks from OpenAPI spec |
 
 ---