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/app.json

@@ -0,0 +1,33 @@
+{
+  "expo": {
+    "name": "Containr",
+    "slug": "containr-mobile",
+    "version": "1.0.0",
+    "orientation": "portrait",
+    "scheme": "containr",
+    "icon": "./assets/icon.png",
+    "userInterfaceStyle": "dark",
+    "ios": {
+      "supportsTablet": true,
+      "bundleIdentifier": "ai.containr.mobile"
+    },
+    "android": {
+      "package": "ai.containr.mobile",
+      "adaptiveIcon": {
+        "backgroundColor": "#0B0F14",
+        "foregroundImage": "./assets/android-icon-foreground.png",
+        "backgroundImage": "./assets/android-icon-background.png",
+        "monochromeImage": "./assets/android-icon-monochrome.png"
+      },
+      "predictiveBackGestureEnabled": false
+    },
+    "web": {
+      "favicon": "./assets/favicon.png"
+    },
+    "plugins": [
+      "expo-router",
+      "expo-secure-store",
+      "expo-font"
+    ]
+  }
+}