Support running multiple Yaak instances via git worktrees (#341)

scripts/run-dev.mjs

@@ -0,0 +1,49 @@
+#!/usr/bin/env node
+
+/**
+ * Script to run Tauri dev server with dynamic port configuration.
+ * Loads port from .env.local if present, otherwise uses default port 1420.
+ */
+
+import { spawnSync } from 'child_process';
+import fs from 'fs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
+// Load .env.local if it exists
+const envLocalPath = path.join(__dirname, '..', '.env.local');
+if (fs.existsSync(envLocalPath)) {
+  const envContent = fs.readFileSync(envLocalPath, 'utf8');
+  const envVars = envContent
+    .split('\n')
+    .filter(line => line && !line.startsWith('#'))
+    .reduce((acc, line) => {
+      const [key, value] = line.split('=');
+      if (key && value) {
+        acc[key.trim()] = value.trim();
+      }
+      return acc;
+    }, {});
+
+  Object.assign(process.env, envVars);
+}
+
+const port = process.env.YAAK_DEV_PORT || '1420';
+const config = JSON.stringify({ build: { devUrl: `http://localhost:${port}` } });
+
+// Get additional arguments passed after npm run app-dev --
+const additionalArgs = process.argv.slice(2);
+
+const args = [
+  'dev',
+  '--no-watch',
+  '--config', './src-tauri/tauri.development.conf.json',
+  '--config', config,
+  ...additionalArgs
+];
+
+const result = spawnSync('tauri', args, { stdio: 'inherit', shell: false, env: process.env });
+
+process.exit(result.status || 0);