feat(android): switch to screen-on rotation service and updated scheduler

The rotation service now responds to screen on/off events via a
dedicated ScreenOnRotationService, reducing background work and
avoiding perpetual wakeful states. Manifest and receiver logic were
adjusted to align with the new behavior and energy constraints.

Scheduling and enablement now consistently use timed-based rules and
screen-on preferences, with the boot and alarm paths updated to honor
these settings. This avoids unnecessary foreground services and keeps
the app compliant with Doze and battery optimizations.

Immich image handling improvements include throttled progress updates,
larger cache allowances, and a connectivity-aware automatic download
check to avoid unwanted network usage.

- Use ScreenOnRotationService for screen-on based rotation scheduling
- Centralize enablement via timed-enabled paths and AlarmManager windowing
- Improve Immich cache and progress reporting with connectivity checks

plugins/src/commands.rs

@@ -64,7 +64,7 @@ pub(crate) async fn set_setting<R: Runtime>(
     app.wallpaper().set_setting(SettingRequest { name, value })
 }
 #[command]
-pub(crate) async fn set_interval<R: Runtime>(app: AppHandle<R>, minutes: usize) -> Result<WallpaperState> {
+pub(crate) async fn set_interval<R: Runtime>(app: AppHandle<R>, minutes: i32) -> Result<WallpaperState> {
     app.wallpaper().set_interval(IntervalRequest { minutes })
 }
 #[command]

plugins/src/desktop.rs

@@ -96,7 +96,7 @@ impl<R: Runtime> Wallpaper<R> {
     pub fn set_interval(&self, payload: IntervalRequest) -> crate::Result<WallpaperState> {
         let mut state = Self::demo();
         state.interval_minutes = payload.minutes;
-        state.enabled = payload.minutes > 0;
+        state.enabled = payload.minutes != 0;
         Ok(state)
     }
     pub fn next_wallpaper(&self) -> crate::Result<WallpaperState> {

plugins/src/models.rs

@@ -5,7 +5,7 @@ use serde::{Deserialize, Serialize};
 pub struct WallpaperState {
     pub image_count: usize,
     pub enabled: bool,
-    pub interval_minutes: usize,
+    pub interval_minutes: i32,
     pub shuffle: bool,
     pub lock_screen_only: bool,
     pub current_index: usize,
@@ -24,7 +24,7 @@ pub struct SettingRequest {
 #[derive(Debug, Clone, Deserialize, Serialize)]
 #[serde(rename_all = "camelCase")]
 pub struct IntervalRequest {
-    pub minutes: usize,
+    pub minutes: i32,
 }
 
 #[derive(Debug, Clone, Deserialize, Serialize)]