chore: snapshot before performance optimization

docker-compose.yml

@@ -1,4 +1,27 @@
 services:
+  # ============================================
+  # PostgreSQL - Shared Database
+  # ============================================
+  postgres:
+    image: postgres:16-alpine
+    container_name: memento-postgres
+    restart: unless-stopped
+    environment:
+      POSTGRES_USER: keepnotes
+      POSTGRES_PASSWORD: keepnotes
+      POSTGRES_DB: keepnotes
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    ports:
+      - "5432:5432"
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U keepnotes"]
+      interval: 5s
+      timeout: 5s
+      retries: 5
+    networks:
+      - memento-network
+
   # ============================================
   # keep-notes - Next.js Web Application
   # ============================================
@@ -12,7 +35,7 @@ services:
     ports:
       - "3000:3000"
     environment:
-      - DATABASE_URL=file:/app/prisma/dev.db
+      - DATABASE_URL=postgresql://keepnotes:keepnotes@postgres:5432/keepnotes
       - NEXTAUTH_SECRET=${NEXTAUTH_SECRET:-changethisinproduction}
       - NEXTAUTH_URL=${NEXTAUTH_URL:-http://localhost:3000}
       - NODE_ENV=production
@@ -34,8 +57,10 @@ services:
       - AI_MODEL_TAGS=${AI_MODEL_TAGS}
       - AI_MODEL_EMBEDDING=${AI_MODEL_EMBEDDING}
     volumes:
-      - db-data:/app/prisma
       - uploads-data:/app/public/uploads
+    depends_on:
+      postgres:
+        condition: service_healthy
     restart: unless-stopped
     healthcheck:
       test: ["CMD", "wget", "--spider", "-q", "http://localhost:3000"]
@@ -71,14 +96,11 @@ services:
       # Mode: 'stdio' (default, for Claude Desktop) or 'sse' (for HTTP/N8N)
       - MCP_MODE=${MCP_MODE:-stdio}
       - PORT=${MCP_PORT:-3001}
-      # Database path - must match the volume mount
-      - DATABASE_URL=file:/app/db/dev.db
+      # Database - connect to shared PostgreSQL
+      - DATABASE_URL=postgresql://keepnotes:keepnotes@postgres:5432/keepnotes
       - NODE_ENV=production
-    volumes:
-      # Shared database with keep-notes
-      - db-data:/app/db
     depends_on:
-      keep-notes:
+      postgres:
         condition: service_healthy
     restart: unless-stopped
     networks:
@@ -119,7 +141,7 @@ services:
 # Volumes - Data Persistence
 # ============================================
 volumes:
-  db-data:
+  postgres-data:
     driver: local
   uploads-data:
     driver: local