feat: Add npm dependencies and update vendor paths

- Add package.json dependencies: jquery, jquery-ui, moment, daterangepicker, wavesurfer.js, air-datepicker
- Create scripts/setup-vendor.js to copy npm packages to public/assets/vendor
- Update view templates to use vendor paths instead of old /js/ or CDN URLs
- Clean up legacy commented-out scripts in master layout

scripts/setup-vendor.js

@@ -0,0 +1,54 @@
+#!/usr/bin/env node
+
+import fs from 'fs';
+import path from 'path';
+import { fileURLToPath } from 'url';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+
+// Map of npm package names to vendor folder names and their dist paths
+const packages = {
+  'jquery': { folder: 'jquery', subdir: 'dist' },
+  'jquery-ui': { folder: 'jquery-ui', subdir: 'dist' },
+  'moment': { folder: 'moment', subdir: '.' },
+  'daterangepicker': { folder: 'daterangepicker', subdir: '' },
+  'wavesurfer.js': { folder: 'wavesurfer', subdir: 'dist' },
+  'air-datepicker': { folder: 'air-datepicker', subdir: 'dist' },
+};
+
+const vendorDir = path.join(__dirname, '..', 'public', 'assets', 'vendor');
+
+// Create vendor directory if it doesn't exist
+if (!fs.existsSync(vendorDir)) {
+  fs.mkdirSync(vendorDir, { recursive: true });
+}
+
+// Copy each package
+Object.entries(packages).forEach(([npmPkg, config]) => {
+  const { folder, subdir } = config;
+  const nodeModulesPkg = path.join(__dirname, '..', 'node_modules', npmPkg);
+  const vendorPkg = path.join(vendorDir, folder);
+  
+  if (!fs.existsSync(nodeModulesPkg)) {
+    console.warn(`Warning: ${npmPkg} not found in node_modules`);
+    return;
+  }
+
+  // Remove existing vendor directory for this package
+  if (fs.existsSync(vendorPkg)) {
+    fs.rmSync(vendorPkg, { recursive: true });
+  }
+
+  // Copy the appropriate files
+  const source = subdir ? path.join(nodeModulesPkg, subdir) : nodeModulesPkg;
+  
+  if (!fs.existsSync(source)) {
+    console.warn(`Warning: Source directory ${source} not found for ${npmPkg}`);
+    return;
+  }
+
+  fs.cpSync(source, vendorPkg, { recursive: true });
+  console.log(`✓ Copied ${npmPkg} → ${folder}`);
+});
+
+console.log(`✓ Vendor setup complete`);