feat: add ESLint flat config, Prettier, dependency-cruiser, and Husky

Setup code quality tooling for the monorepo:
- ESLint 9 flat config with TypeScript, import ordering, and NestJS rules
- Prettier with consistent formatting across all files
- dependency-cruiser enforcing module boundary rules (no cross-module internals, no circular deps)
- Husky + lint-staged for pre-commit hooks
- Auto-fixed existing files for type imports and import ordering

Co-Authored-By: Paperclip <noreply@paperclip.ing>

docker-compose.yml

@@ -4,7 +4,7 @@ services:
     container_name: goodgo-postgres
     restart: unless-stopped
     ports:
-      - "${DB_PORT:-5432}:5432"
+      - '${DB_PORT:-5432}:5432'
     environment:
       POSTGRES_DB: ${DB_NAME:-goodgo}
       POSTGRES_USER: ${DB_USER:-goodgo}
@@ -12,7 +12,7 @@ services:
     volumes:
       - pgdata:/var/lib/postgresql/data
     healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U ${DB_USER:-goodgo} -d ${DB_NAME:-goodgo}"]
+      test: ['CMD-SHELL', 'pg_isready -U ${DB_USER:-goodgo} -d ${DB_NAME:-goodgo}']
       interval: 10s
       timeout: 5s
       retries: 5
@@ -25,12 +25,12 @@ services:
     container_name: goodgo-redis
     restart: unless-stopped
     ports:
-      - "${REDIS_PORT:-6379}:6379"
+      - '${REDIS_PORT:-6379}:6379'
     command: redis-server --appendonly yes --maxmemory 256mb --maxmemory-policy allkeys-lru
     volumes:
       - redis_data:/data
     healthcheck:
-      test: ["CMD", "redis-cli", "ping"]
+      test: ['CMD', 'redis-cli', 'ping']
       interval: 10s
       timeout: 5s
       retries: 5
@@ -43,15 +43,15 @@ services:
     container_name: goodgo-typesense
     restart: unless-stopped
     ports:
-      - "${TYPESENSE_PORT:-8108}:8108"
+      - '${TYPESENSE_PORT:-8108}:8108'
     environment:
       TYPESENSE_API_KEY: ${TYPESENSE_API_KEY:-ts_dev_key_change_me}
       TYPESENSE_DATA_DIR: /data
-      TYPESENSE_ENABLE_CORS: "true"
+      TYPESENSE_ENABLE_CORS: 'true'
     volumes:
       - typesense_data:/data
     healthcheck:
-      test: ["CMD", "curl", "-sf", "http://localhost:8108/health"]
+      test: ['CMD', 'curl', '-sf', 'http://localhost:8108/health']
       interval: 10s
       timeout: 5s
       retries: 5
@@ -64,8 +64,8 @@ services:
     container_name: goodgo-minio
     restart: unless-stopped
     ports:
-      - "${MINIO_API_PORT:-9000}:9000"
-      - "${MINIO_CONSOLE_PORT:-9001}:9001"
+      - '${MINIO_API_PORT:-9000}:9000'
+      - '${MINIO_CONSOLE_PORT:-9001}:9001'
     command: server /data --console-address ":9001"
     environment:
       MINIO_ROOT_USER: ${MINIO_USER:-minioadmin}
@@ -73,7 +73,7 @@ services:
     volumes:
       - minio_data:/data
     healthcheck:
-      test: ["CMD", "mc", "ready", "local"]
+      test: ['CMD', 'mc', 'ready', 'local']
       interval: 10s
       timeout: 5s
       retries: 5