Track config files for CI/CD deployment

Config files were previously gitignored, causing CI/CD pipeline to fail
because Docker would create directories instead of mounting the expected files.

- Remove config/** from .gitignore
- Track all config files (secrets still ignored)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

config/app/ci.yml

@@ -0,0 +1,79 @@
+# CI-specific configuration for backend tests. Mirrors production schema with safe defaults.
+server:
+  name: mvp-backend-ci
+  port: 3001
+  environment: test
+  node_env: test
+
+database:
+  host: mvp-postgres
+  port: 5432
+  name: motovaultpro
+  user: postgres
+
+redis:
+  host: mvp-redis
+  port: 6379
+  db: 0
+
+platform:
+  services:
+    vehicles:
+      url: http://mvp-platform-vehicles-api:8000
+      timeout: 5s
+
+external:
+  vpic:
+    url: https://vpic.nhtsa.dot.gov/api/vehicles
+    timeout: 10s
+
+service:
+  name: mvp-backend
+
+cors:
+  origins:
+    - http://localhost
+  allow_credentials: false
+  max_age: 0
+
+frontend:
+  api_base_url: /api
+  auth0:
+    domain: motovaultpro.us.auth0.com
+    audience: https://api.motovaultpro.com
+
+health:
+  endpoints:
+    basic: /health
+    ready: /health/ready
+    live: /health/live
+    startup: /health/startup
+  probes:
+    startup:
+      initial_delay: 1s
+      period: 1s
+      timeout: 1s
+      failure_threshold: 3
+    readiness:
+      period: 1s
+      timeout: 1s
+      failure_threshold: 3
+    liveness:
+      period: 1s
+      timeout: 1s
+      failure_threshold: 3
+
+logging:
+  level: debug
+  format: json
+  destinations:
+    - console
+
+performance:
+  request_timeout: 30s
+  max_request_size: 10MB
+  compression_enabled: false
+  circuit_breaker:
+    enabled: false
+    failure_threshold: 5
+    timeout: 5s