db/ add docker compose

docker-compose.yml

@@ -0,0 +1,12 @@
+version: "3.8"
+
+services:
+  postgres:
+    image: pgvector/pgvector:pg17-trixie
+    container_name: agentic-coding-postgres
+    environment:
+      POSTGRES_DB: agentic_coding_dev
+      POSTGRES_USER: dev_user
+      POSTGRES_PASSWORD: dev_password
+    ports:
+      - "5432:5432"

env.example

@@ -1,5 +1,5 @@
 # Database
-POSTGRES_URL=
+POSTGRES_URL=postgresql://dev_user:dev_password@localhost:5432/agentic_coding_dev
 
 # Authentication - Better Auth
 # Generate key using https://www.better-auth.com/docs/installation