feat(android): Quick Settings tile toggling camera backup

TileService reporting active/inactive from CameraUploadSettings; a tap
arms or disarms the periodic MediaStore backup worker.

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

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

ROADMAP.md

@@ -242,7 +242,7 @@ Lives in `android/` in this repo. Kotlin + Jetpack Compose, Material 3.
 
 - **API**: `api/v4` REST + OAuth token (entities exist: `oauthclient`, `oauthgrant`) — same surface the desktop `cloudreve-api` crate documents; port its models as the spec
 - **Core features**: browse/download/upload files, share links, full-text search (done — query bar + offset pagination + parent-path/snippet rows), camera-upload (done — periodic WorkManager MediaStore sync, Wi-Fi-only constraint, ID dedup, settings dialog), offline-favorite files (done — "Keep offline" downloads to filesDir/offline, DataStore registry, star dialog with open/refresh/remove), local sync folder (done — SAF tree → remote mirror, upload-only, mtime/size dedup)
-- **System integration** (the "native, complete" ask): share-sheet target (done — SEND/SEND_MULTIPLE → UploadWorker), DocumentsProvider (done — Files-app browse/open/thumb/rename/delete/search), quick-share tile, notifications on share/task events (done — periodic /workflow poll → terminal-state notifications)
+- **System integration** (the "native, complete" ask): share-sheet target (done — SEND/SEND_MULTIPLE → UploadWorker), DocumentsProvider (done — Files-app browse/open/thumb/rename/delete/search), quick-share tile (done — QS tile toggles camera backup), notifications on share/task events (done — periodic /workflow poll → terminal-state notifications)
 - **Auth**: OAuth flow (done — browser consent + PKCE + `cloudreve://mount` deep link); later passkey if backend exposes
 - **WebDAV bridge**: `/dav` works as fallback file access until SDK matures
 - Non-goals: iOS, tablet-first layouts (works, not optimized)

android/README.md

@@ -51,8 +51,8 @@ CI runs `assembleDebug` on every PR.
   and a remote folder — periodic WorkManager worker mirrors new/changed
   files upstream, subdirectory structure preserved, unchanged files
   skipped via mtime/size signatures, Wi-Fi-only option
+- Quick Settings tile toggling camera backup, with active/inactive state
 
 ## Planned next
 
-- Quick-share tile
 - No iOS. Ever.

android/app/src/main/AndroidManifest.xml

@@ -54,6 +54,17 @@
                 android:resource="@xml/file_paths" />
         </provider>
 
+        <service
+            android:name=".tile.SyncTileService"
+            android:exported="true"
+            android:label="@string/app_name"
+            android:icon="@mipmap/ic_launcher"
+            android:permission="android.permission.BIND_QUICK_SETTINGS_TILE">
+            <intent-filter>
+                <action android:name="android.service.quicksettings.action.QS_TILE" />
+            </intent-filter>
+        </service>
+
         <provider
             android:name=".provider.CloudreveDocumentsProvider"
             android:authorities="${applicationId}.documents"

android/app/src/main/java/org/cloudreve/android/tile/SyncTileService.kt

@@ -0,0 +1,56 @@
+package org.cloudreve.android.tile
+
+import android.service.quicksettings.Tile
+import android.service.quicksettings.TileService
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.launch
+import org.cloudreve.android.CloudreveApp
+import org.cloudreve.android.work.CameraUploadWorker
+
+/**
+ * Quick Settings tile: shows whether camera backup is armed and toggles
+ * it. Tap → backup on; tap again → off.
+ */
+class SyncTileService : TileService() {
+
+    private val scope = CoroutineScope(SupervisorJob() + Dispatchers.IO)
+
+    override fun onStartListening() {
+        super.onStartListening()
+        scope.launch { refresh() }
+    }
+
+    override fun onClick() {
+        super.onClick()
+        val app = applicationContext as CloudreveApp
+        scope.launch {
+            val cam = app.cameraUploadSettings.snapshotNow()
+            if (cam.enabled) {
+                app.cameraUploadSettings.setEnabled(false)
+                CameraUploadWorker.cancel(applicationContext)
+            } else {
+                app.cameraUploadSettings.setEnabled(true)
+                CameraUploadWorker.apply(applicationContext, cam.wifiOnly)
+            }
+            refresh()
+        }
+    }
+
+    private suspend fun refresh() {
+        val app = applicationContext as CloudreveApp
+        val enabled = app.cameraUploadSettings.snapshotNow().enabled
+        qsTile?.apply {
+            state = if (enabled) Tile.STATE_ACTIVE else Tile.STATE_INACTIVE
+            subtitle = if (enabled) "Camera backup on" else "Camera backup off"
+            updateTile()
+        }
+    }
+
+    override fun onDestroy() {
+        super.onDestroy()
+        scope.cancel()
+    }
+}