feat: rename keep-notes to memento-note, migrate to PostgreSQL, fix MCP bugs

- Rename directory keep-notes -> memento-note with all code references
- Prisma: SQLite -> PostgreSQL (both app and MCP server schemas)
- Sync MCP schema with main app (add missing fields, relations, indexes)
- Delete 17 SQLite migrations (clean slate for PostgreSQL)
- Remove SQLite dependencies (@libsql/client, better-sqlite3, etc.)
- Fix MCP server: hardcoded Windows DB paths -> DATABASE_URL env var
- Fix MCP server: .dockerignore excluded index-sse.js (SSE mode broken)
- MCP Dockerfile: node:20 -> node:22
- Docker Compose: add postgres service, remove SQLite volume
- Generate favicon.ico, icon-192.png, icon-512.png, apple-icon.png
- Update layout.tsx icons and manifest.json for PNG icons
- Update all .env files for PostgreSQL
- Rewrite README.md with updated sections
- Remove mcp-server/node_modules and prisma/client-generated from git tracking

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

memento-note/docker-compose.yml

@@ -0,0 +1,112 @@
+services:
+  # ============================================
+  # PostgreSQL - Database
+  # ============================================
+  postgres:
+    image: postgres:16-alpine
+    container_name: memento-postgres
+    ports:
+      - "${POSTGRES_PORT:-5432}:5432"
+    environment:
+      - POSTGRES_DB=${POSTGRES_DB:-memento}
+      - POSTGRES_USER=${POSTGRES_USER:-memento}
+      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-memento}
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-memento}"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+      start_period: 10s
+    networks:
+      - memento-network
+
+  # ============================================
+  # memento-note - Next.js Web Application
+  # ============================================
+  memento-note:
+    build:
+      context: .
+      dockerfile: Dockerfile
+    image: memento-note:latest
+    container_name: memento-note
+    restart: unless-stopped
+    ports:
+      - "3000:3000"
+    environment:
+      # Database
+      - DATABASE_URL=postgresql://${POSTGRES_USER:-memento}:${POSTGRES_PASSWORD:-memento}@postgres:5432/${POSTGRES_DB:-memento}
+      - NODE_ENV=production
+
+      # Application (IMPORTANT: Change these!)
+      - NEXTAUTH_URL=${NEXTAUTH_URL:-http://localhost:3000}
+      - NEXTAUTH_SECRET=${NEXTAUTH_SECRET:-change-this-to-a-random-secret-string}
+
+      # Disable Next.js telemetry
+      - NEXT_TELEMETRY_DISABLED=1
+
+      # AI Provider (Optional - for OpenAI)
+      # - OPENAI_API_KEY=your-openai-api-key-here
+
+      # AI Provider (Optional - for Ollama)
+      # - OLLAMA_BASE_URL=http://ollama:11434
+      # - OLLAMA_MODEL=granite4:latest
+    volumes:
+      # Persist uploaded images and files
+      - uploads-data:/app/public/uploads
+    depends_on:
+      postgres:
+        condition: service_healthy
+    networks:
+      - memento-network
+    # Optional: Resource limits for Proxmox VM
+    deploy:
+      resources:
+        limits:
+          cpus: '2'
+          memory: 2G
+        reservations:
+          cpus: '0.5'
+          memory: 512M
+    # Health check for automatic restart
+    healthcheck:
+      test: ["CMD", "wget", "--spider", "-q", "http://localhost:3000"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+  # Optional: Ollama for local AI models
+  # Uncomment this section if you want to use local AI models
+  # ollama:
+  #   image: ollama/ollama:latest
+  #   container_name: memento-ollama
+  #   restart: unless-stopped
+  #   ports:
+  #     - "11434:11434"
+  #   volumes:
+  #     - ollama-data:/root/.ollama
+  #   networks:
+  #     - memento-network
+  #   deploy:
+  #     resources:
+  #       limits:
+  #         cpus: '4'
+  #         memory: 8G
+  #       reservations:
+  #         cpus: '2'
+  #         memory: 4G
+
+networks:
+  memento-network:
+    driver: bridge
+
+volumes:
+  postgres-data:
+    driver: local
+  uploads-data:
+    driver: local
+  # ollama-data:
+  #   driver: local