fix: Resolve mobile app crash with import.meta and babel config

- Add guard for import.meta in endpoints.ts for React Native compatibility
- Add jsEngine: jsc to app.json to match gradle.properties
- Add @babel/plugin-transform-class-static-block for @pezkuwi/types-codec

mobile/metro.config.cjs

@@ -10,8 +10,16 @@ const config = getDefaultConfig(__dirname);
 // ============================================
 
 const projectRoot = __dirname;
+const workspaceRoot = path.resolve(projectRoot, '..');
 
-// Use default watchFolders (no custom configuration)
+// Watch folders - include shared directory for cross-project imports
+config.watchFolders = [workspaceRoot];
+
+// Tell Metro where to resolve packages (both project and workspace node_modules)
+config.resolver.nodeModulesPaths = [
+  path.resolve(projectRoot, 'node_modules'),
+  path.resolve(workspaceRoot, 'node_modules'),
+];
 
 // ============================================
 // CUSTOM MODULE RESOLUTION