WIP: Fix Electron build issues and migrate to @nostr/tools

- Fix TypeScript compilation errors in platform services
- Add missing rotateCamera method and isNativeApp property
- Fix index.html path resolution for packaged Electron apps
- Create separate Vite config for Electron renderer process
- Migrate from nostr-tools to @nostr/tools via JSR for ESM compatibility
- Update all Vite configs to handle mixed npm/JSR package management
- Add comprehensive documentation in BUILDING.md
- Fix preload script path resolution in packaged builds

Resolves build failures with deep imports and missing UI in AppImage.

src/electron/main.ts

@@ -21,7 +21,9 @@ const isDev = process.argv.includes("--inspect");
 
 function createWindow(): void {
   // Add before createWindow function
-  const preloadPath = path.join(__dirname, "preload.js");
+  const preloadPath = app.isPackaged
+    ? path.join(app.getAppPath(), "dist-electron", "preload.js")
+    : path.join(__dirname, "preload.js");
   logger.log("Checking preload path:", preloadPath);
   logger.log("Preload exists:", fs.existsSync(preloadPath));
 
@@ -53,7 +55,7 @@ function createWindow(): void {
       contextIsolation: true,
       webSecurity: true,
       allowRunningInsecureContent: false,
-      preload: path.join(__dirname, "preload.js"),
+      preload: preloadPath,
     },
   });
 
@@ -107,15 +109,27 @@ function createWindow(): void {
     logger.log("process.cwd():", process.cwd());
   }
 
-  let indexPath = path.resolve(__dirname, "dist-electron", "www", "index.html");
-  if (!fs.existsSync(indexPath)) {
-    // Fallback for dev mode
+  let indexPath: string;
+  if (app.isPackaged) {
+    indexPath = path.join(
+      app.getAppPath(),
+      "dist-electron",
+      "www",
+      "index.html",
+    );
+    logger.log("[main.ts] Using packaged indexPath:", indexPath);
+  } else {
     indexPath = path.resolve(
       process.cwd(),
       "dist-electron",
       "www",
       "index.html",
     );
+    logger.log("[main.ts] Using dev indexPath:", indexPath);
+    if (!fs.existsSync(indexPath)) {
+      logger.error("[main.ts] Dev index.html not found:", indexPath);
+      throw new Error("Index file not found");
+    }
   }
 
   if (isDev) {
@@ -124,11 +138,6 @@ function createWindow(): void {
     logger.log("www assets path:", path.join(__dirname, "www", "assets"));
   }
 
-  if (!fs.existsSync(indexPath)) {
-    logger.error(`Index file not found at: ${indexPath}`);
-    throw new Error("Index file not found");
-  }
-
   // Add CSP headers to allow API connections
   mainWindow.webContents.session.webRequest.onHeadersReceived(
     (details, callback) => {