Quaternius weapons, input fixes, sound & path fixes

- Added 6 Quaternius weapon models (Pistol, Revolver, Rifle, Shotgun, P90, SniperRifle)
- Created weapon resource files with balanced stats
- Wired Pistol + Rifle into player.tscn replacing Kenney blasters
- Fixed WASD input (matched input map action names)
- Fixed Escape key toggles mouse capture
- Added Audio autoload singleton
- Fixed broken sound asset paths across all scripts
- Fixed all scene ext_resource text paths (nested under assets/kenney-fps/)
- Fixed all .import source_file paths
- Deleted stale .import files (will be regenerated by editor on open)

package/dist/tools/validate-tools.d.ts

@@ -0,0 +1,15 @@
+import type { GodotRunner, OperationParams, ToolDefinition } from '../utils/godot-runner.js';
+export declare const validateToolDefinitions: ToolDefinition[];
+export declare function handleValidate(runner: GodotRunner, args: OperationParams): Promise<{
+    content: Array<{
+        type: "text";
+        text: string;
+    }>;
+    isError: boolean;
+} | {
+    content: {
+        type: string;
+        text: string;
+    }[];
+}>;
+//# sourceMappingURL=validate-tools.d.ts.map