Own Apple storage paths in Apple platform state

PanoPainter-OSX/main.cpp

@@ -614,7 +614,7 @@ NSString* keyCodeToString(NSUInteger keyCode, NSUInteger mods)
         LOG("error creating settings path: %s", [[err localizedDescription] cStringUsingEncoding:NSASCIIStringEncoding]);
     }
 
-    pp::platform::legacy::set_legacy_storage_paths({
+    pp::platform::apple::set_legacy_apple_storage_paths({
         data_path,
         data_path,
         recording_path,

PanoPainter/GameViewController.m

@@ -153,7 +153,7 @@ std::recursive_mutex lock_mutex;
         LOG("error creating settings path: %s", [[err localizedDescription] cStringUsingEncoding:NSASCIIStringEncoding]);
     }
 
-    pp::platform::legacy::set_legacy_storage_paths({
+    pp::platform::apple::set_legacy_apple_storage_paths({
         data_path,
         data_path,
         recording_path,

docs/modernization/roadmap.md

@@ -70,6 +70,12 @@ What is already real:
 - `pp_app_core`
 
 Latest slice:
+- `src/platform_apple/apple_platform_state.cpp` no longer reads Apple storage
+  paths from `pp::platform::legacy::active_legacy_storage_paths()`;
+  Apple-owned retained state now carries that path bundle.
+- `PanoPainter-OSX/main.cpp` and `PanoPainter/GameViewController.m` now seed
+  Apple-owned storage paths directly instead of writing them through the shared
+  legacy storage-path singleton.
 - `src/platform_legacy/legacy_platform_state.*` now exposes an ownable Web
   platform-services entrypoint plus an explicit binding hook instead of only a
   retained fallback object.

docs/modernization/tasks.md

@@ -78,6 +78,11 @@ Completed, blocked, and superseded task history moved to
   the queue is now ordered by code movement instead.
 
 Current slice:
+- `src/platform_apple/apple_platform_state.cpp` now reads Apple storage paths
+  from Apple-owned retained state rather than the shared legacy storage-path
+  singleton.
+- `PanoPainter-OSX/main.cpp` and `PanoPainter/GameViewController.m` now seed
+  Apple-owned storage paths directly.
 - `src/platform_legacy/legacy_platform_state.*` now exposes
   `create_legacy_web_platform_services()` plus an explicit binding hook for the
   retained Web service surface.

src/platform_apple/apple_platform_services.h

@@ -28,6 +28,7 @@ struct RetainedLegacyAppleState final {
     View* osx_view = nullptr;
     AppOSX* osx_app = nullptr;
 #endif
+    pp::platform::PlatformStoragePaths storage_paths;
 };
 
 struct AppleDocumentPickerBridge {
@@ -98,6 +99,7 @@ private:
 [[nodiscard]] AppleDocumentPlatformServices&
 active_legacy_apple_document_platform_services();
 [[nodiscard]] pp::platform::PlatformStoragePaths prepare_legacy_apple_storage_paths();
+void set_legacy_apple_storage_paths(pp::platform::PlatformStoragePaths paths);
 void set_legacy_apple_state(
 #if defined(__OBJC__) && defined(__IOS__)
     GameViewController* ios_view,

src/platform_apple/apple_platform_state.cpp

@@ -221,7 +221,12 @@ struct RetainedLegacyAppleDocumentPlatformState final {
 #elif defined(__OSX__)
     [apple_state.osx_app init_dirs];
 #endif
-    return pp::platform::legacy::active_legacy_storage_paths();
+    return apple_state.storage_paths;
+}
+
+void set_legacy_apple_storage_paths(pp::platform::PlatformStoragePaths paths)
+{
+    active_legacy_apple_state().storage_paths = std::move(paths);
 }
 
 void set_legacy_apple_state(