feat(mobile): Containr companion app — Expo/RN thin client

Phone app v1 (Phase I): PAT auth against any instance, secure-store
credentials, dark UI matching the design system.

- Overview: service status counts, per-project health dots, deploy feed
- Services/Projects: status badges, drill-down detail
- Service detail: start/stop/restart/redeploy/sleep/wake, env-doctor
  issues, deployment history + rollback
- Logs: 300-line tail, 5s poll, stderr highlighted
- Databases: status, start/stop/restart, backup-now
- Settings: server info, disconnect

CI: mobile job (tsc + expo lint) gated on a dedicated app/mobile paths
filter so non-mobile PRs skip it entirely.

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

app/mobile/.gitignore

@@ -0,0 +1,41 @@
+# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
+
+# dependencies
+node_modules/
+
+# Expo
+.expo/
+dist/
+web-build/
+expo-env.d.ts
+
+# Native
+.kotlin/
+*.orig.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+
+# Metro
+.metro-health-check*
+
+# debug
+npm-debug.*
+yarn-debug.*
+yarn-error.*
+
+# macOS
+.DS_Store
+*.pem
+
+# local env files
+.env*.local
+
+# typescript
+*.tsbuildinfo
+
+# generated native folders
+/ios
+/android