Add scenic application flow aligned with Android.

Implement scenic apply models, API, upload, UI, and tests; wire entry from permission apply pages and include related permission/scenic selection UI fixes.

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

suixinkan/Features/Home/ViewModels/ScenicSelectionViewModel.swift

@@ -17,6 +17,7 @@ final class ScenicSelectionViewModel {
     private(set) var spots: [ScenicSpotDisplayItem] = []
     private(set) var searchQuery = ""
     private(set) var currentLocationText = "最近的景区"
+    private(set) var isLocating = false
     private(set) var isLoading = false
 
     var onStateChange: (() -> Void)?
@@ -53,7 +54,7 @@ final class ScenicSelectionViewModel {
     }
 
     func startLocation() async {
-        isLoading = true
+        isLocating = true
         notifyStateChange()
         do {
             let snapshot = try await locationProvider.requestSnapshot()
@@ -67,7 +68,7 @@ final class ScenicSelectionViewModel {
         } catch {
             onShowMessage?("定位失败: \(error.localizedDescription)")
         }
-        isLoading = false
+        isLocating = false
         notifyStateChange()
     }