Add Overworld accessors and enhance testing framework

- Introduced new methods in `Controller`, `EditorManager`, and `OverworldEditor` to access the `Overworld` instance, improving modularity and interaction with the overworld data.
- Added `GetTile` method in `Overworld` to retrieve tile data based on coordinates, enhancing functionality for tile manipulation.
- Implemented a new testing framework with automated GUI tests, including `CanvasSelectionTest` and `FrameworkSmokeTest`, to validate user interactions and ensure robustness.
- Updated `CMakeLists.txt` to include new test files and dependencies, streamlining the build process for testing.
- Refactored logging behavior to ensure proper file handling during logging operations, improving reliability in logging outputs.

src/app/core/controller.h

@@ -32,6 +32,7 @@ class Controller {
   auto window() -> SDL_Window * { return window_.window_.get(); }
   void set_active(bool active) { active_ = active; }
   auto active() const { return active_; }
+  auto overworld() -> yaze::zelda3::Overworld* { return editor_manager_.overworld(); }
 
  private:
   friend int ::main(int argc, char **argv);

src/app/editor/editor_manager.h

@@ -101,6 +101,7 @@ class EditorManager {
   absl::Status SetCurrentRom(Rom* rom);
   auto GetCurrentRom() -> Rom* { return current_rom_; }
   auto GetCurrentEditorSet() -> EditorSet* { return current_editor_set_; }
+  auto overworld() -> yaze::zelda3::Overworld* { return &current_editor_set_->overworld_editor_.overworld(); }
 
   // Get current session's feature flags (falls back to global if no session)
   core::FeatureFlags::Flags* GetCurrentFeatureFlags() {

src/app/editor/overworld/overworld_editor.h

@@ -94,6 +94,7 @@ class OverworldEditor : public Editor, public gfx::GfxContext {
   absl::Status Find() override { return absl::UnimplementedError("Find"); }
   absl::Status Save() override;
   absl::Status Clear() override;
+  zelda3::Overworld& overworld() { return overworld_; }
   
   /**
    * @brief Apply ZSCustomOverworld ASM patch to upgrade ROM version

src/app/zelda3/overworld/overworld.h

@@ -278,6 +278,15 @@ class Overworld {
   auto expanded_entrances() const { return expanded_entrances_; }
   void set_current_map(int i) { current_map_ = i; }
   void set_current_world(int world) { current_world_ = world; }
+  uint16_t GetTile(int x, int y) const {
+    if (current_world_ == 0) {
+      return map_tiles_.light_world[y][x];
+    } else if (current_world_ == 1) {
+      return map_tiles_.dark_world[y][x];
+    } else {
+      return map_tiles_.special_world[y][x];
+    }
+  }
   auto map_tiles() const { return map_tiles_; }
   auto mutable_map_tiles() { return &map_tiles_; }
   auto all_items() const { return all_items_; }