feat: V1 prototype — Vite/React/TS tileset generator

- Scaffold: package.json, tsconfig.json, vite.config.ts, index.html
- src/lib/imageProcessor.ts: full pipeline (normalize, offset, seam repair, export, validation)
- src/components/UploadPanel.tsx: drag-and-drop, file picker, clipboard paste
- src/components/SettingsPanel.tsx: all controls per spec
- src/components/PreviewPanel.tsx: Original / Tileable / Repeated tabs
- src/components/ErrorBanner.tsx: dismissible error/warning banners
- src/App.tsx: root component wiring everything together
- src/index.css: dark premium glassmorphism theme w/ Inter font

node_modules/rollup/dist/shared/fsevents-importer.js

@@ -0,0 +1,37 @@
+/*
+  @license
+	Rollup.js v4.60.4
+	Thu, 14 May 2026 17:52:21 GMT - commit d311a84b0bb4d4a6f50d19ffd2c29cca28660c88
+
+	https://github.com/rollup/rollup
+
+	Released under the MIT License.
+*/
+'use strict';
+
+let fsEvents;
+let fsEventsImportError;
+async function loadFsEvents() {
+    try {
+        ({ default: fsEvents } = await import('fsevents'));
+    }
+    catch (error) {
+        fsEventsImportError = error;
+    }
+}
+// A call to this function will be injected into the chokidar code
+function getFsEvents() {
+    if (fsEventsImportError)
+        throw fsEventsImportError;
+    return fsEvents;
+}
+
+const fseventsImporter = /*#__PURE__*/Object.defineProperty({
+    __proto__: null,
+    getFsEvents,
+    loadFsEvents
+}, Symbol.toStringTag, { value: 'Module' });
+
+exports.fseventsImporter = fseventsImporter;
+exports.loadFsEvents = loadFsEvents;
+//# sourceMappingURL=fsevents-importer.js.map