chore(workflow): add AI-assisted workflow commands and configurations

Add comprehensive workflow commands for AI-assisted development:
- Claude commands: analyze, clarify, plan
- Kilocode workflows: full feature development lifecycle
- Opencode commands: specification and implementation workflows
- Roo MCP configuration for tool integration

Update .gitignore to exclude .astro build cache directories.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

backend/scripts/migrate.js

@@ -0,0 +1,42 @@
+// Migration script to import content from CSVs to Payload CMS
+
+const fs = require('fs');
+const path = require('path');
+const csv = require('csv-parser'); // Assume installed
+const { Payload } = require('payload');
+
+async function migrate() {
+  // Initialize Payload
+  const payload = new Payload({
+    // Config
+  });
+
+  // Read CSV files
+  const csvFiles = [
+    'research/恩群數位行銷 - 文章分類s.csv',
+    'research/恩群數位行銷 - 行銷放大鏡集.csv',
+    'research/恩群數位行銷 - 網站設計範本s.csv'
+  ];
+
+  for (const file of csvFiles) {
+    const data = [];
+    fs.createReadStream(path.join(__dirname, '../../', file))
+      .pipe(csv())
+      .on('data', (row) => data.push(row))
+      .on('end', async () => {
+        // Import to Payload collections
+        for (const item of data) {
+          try {
+            await payload.create({
+              collection: 'posts', // or appropriate collection
+              data: item
+            });
+          } catch (error) {
+            console.error('Migration error:', error);
+          }
+        }
+      });
+  }
+}
+
+migrate().catch(console.error);