feat(app): deep links, notification launch, and night splash

Add wallenc:// URI patterns, manifest VIEW intent-filters, and NavDeepLink
with handleDeepLink from MainActivity. Move FGS notification PendingIntent
constants to WallencExternalLaunch. Theme splash/window background via
splash_screen_background in values and values-night.

Co-authored-by: Cursor <cursoragent@cursor.com>

ui/src/main/java/com/github/nullptroma/wallenc/ui/WallencUi.kt

@@ -1,5 +1,6 @@
 package com.github.nullptroma.wallenc.ui
 
+import android.content.Intent
 import androidx.compose.animation.core.tween
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
@@ -26,7 +27,10 @@ import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
 import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.currentBackStackEntryAsState
+import androidx.navigation.navDeepLink
 import com.github.nullptroma.wallenc.ui.navigation.NavBarItemData
+import com.github.nullptroma.wallenc.ui.navigation.WallencDeepLinks
+import com.github.nullptroma.wallenc.ui.navigation.matchesWallencDeepLink
 import com.github.nullptroma.wallenc.ui.navigation.rememberNavigationState
 import com.github.nullptroma.wallenc.ui.screens.main.MainRoute
 import com.github.nullptroma.wallenc.ui.screens.main.MainScreen
@@ -40,10 +44,16 @@ import com.github.nullptroma.wallenc.ui.theme.WallencTheme
 
 
 @Composable
-fun WallencUi(taskPipelineOpenRequestCount: Int = 0) {
+fun WallencUi(
+    deepLinkPulse: Int = 0,
+    deepLinkIntent: Intent = Intent(),
+) {
     WallencTheme {
         Surface {
-            WallencNavRoot(taskPipelineOpenRequestCount = taskPipelineOpenRequestCount)
+            WallencNavRoot(
+                deepLinkPulse = deepLinkPulse,
+                deepLinkIntent = deepLinkIntent,
+            )
         }
     }
 }
@@ -52,7 +62,8 @@ fun WallencUi(taskPipelineOpenRequestCount: Int = 0) {
 @Composable
 fun WallencNavRoot(
     viewModel: WallencViewModel = hiltViewModel(),
-    taskPipelineOpenRequestCount: Int = 0,
+    deepLinkPulse: Int = 0,
+    deepLinkIntent: Intent = Intent(),
 ) {
     val navState = rememberNavigationState()
     val mainNavState = rememberNavigationState()
@@ -62,10 +73,10 @@ fun WallencNavRoot(
 
     val topLevelRoutes = viewModel.routes
 
-    LaunchedEffect(taskPipelineOpenRequestCount) {
-        if (taskPipelineOpenRequestCount <= 0) return@LaunchedEffect
-        val route = topLevelRoutes[TaskPipelineRoute::class.qualifiedName!!] ?: return@LaunchedEffect
-        navState.changeTop(route)
+    LaunchedEffect(deepLinkPulse) {
+        if (deepLinkPulse <= 0) return@LaunchedEffect
+        if (!deepLinkIntent.matchesWallencDeepLink()) return@LaunchedEffect
+        navState.navHostController.handleDeepLink(deepLinkIntent)
     }
 
     val topLevelNavBarItems = remember {
@@ -121,7 +132,11 @@ fun WallencNavRoot(
             navState.navHostController,
             startDestination = topLevelRoutes[MainRoute::class.qualifiedName]!!
         ) {
-            composable<MainRoute>(enterTransition = {
+            composable<MainRoute>(
+                deepLinks = listOf(
+                    navDeepLink { uriPattern = WallencDeepLinks.MAIN_URI_PATTERN },
+                ),
+                enterTransition = {
                 fadeIn(tween(200))
             }, exitTransition = {
                 fadeOut(tween(200))
@@ -132,14 +147,22 @@ fun WallencNavRoot(
                     viewModel = mainViewModel
                 )
             }
-            composable<SettingsRoute>(enterTransition = {
+            composable<SettingsRoute>(
+                deepLinks = listOf(
+                    navDeepLink { uriPattern = WallencDeepLinks.SETTINGS_URI_PATTERN },
+                ),
+                enterTransition = {
                 fadeIn(tween(200))
             }, exitTransition = {
                 fadeOut(tween(200))
             }) {
                 SettingsScreen(Modifier.padding(innerPaddings), settingsViewModel)
             }
-            composable<TaskPipelineRoute>(enterTransition = {
+            composable<TaskPipelineRoute>(
+                deepLinks = listOf(
+                    navDeepLink { uriPattern = WallencDeepLinks.TASKS_URI_PATTERN },
+                ),
+                enterTransition = {
                 fadeIn(tween(200))
             }, exitTransition = {
                 fadeOut(tween(200))

ui/src/main/java/com/github/nullptroma/wallenc/ui/navigation/WallencDeepLinks.kt

@@ -0,0 +1,29 @@
+package com.github.nullptroma.wallenc.ui.navigation
+
+import android.content.Intent
+
+/**
+ * URI для входа извне приложения (уведомления, виджеты, шорткаты, другие Activity).
+ *
+ * Должны совпадать с `<intent-filter><data android:scheme=… android:host=…/></intent-filter>` в манифесте
+ * и с [androidx.navigation.navDeepLink] на соответствующих `composable` в [androidx.navigation.compose.NavHost].
+ *
+ * Для публичных HTTPS-ссылок позже добавляют отдельные хосты и `android:autoVerify`.
+ */
+object WallencDeepLinks {
+    const val SCHEME = "wallenc"
+
+    object Host {
+        const val MAIN = "main"
+        const val TASKS = "tasks"
+        const val SETTINGS = "settings"
+    }
+
+    const val MAIN_URI_PATTERN = "$SCHEME://${Host.MAIN}"
+    const val TASKS_URI_PATTERN = "$SCHEME://${Host.TASKS}"
+    const val SETTINGS_URI_PATTERN = "$SCHEME://${Host.SETTINGS}"
+}
+
+/** `ACTION_VIEW` с URI нашей схемы — обрабатывается [androidx.navigation.NavController.handleDeepLink]. */
+fun Intent.matchesWallencDeepLink(): Boolean =
+    action == Intent.ACTION_VIEW && data?.scheme == WallencDeepLinks.SCHEME