Implement full consent logging system with SQLite database

- Install better-sqlite3 and @astrojs/node adapter
- Update consent API to use SQLite database
- Add DELETE endpoint for consent logs
- Update admin consent-logs page with full UI (stats, table, export, delete)
- Add sessionId to consent tracking
- Admin password: Coolm@n1234mo

Note: Database stored at data/consent.db (gitignored)

astro.config.mjs

@@ -1,6 +1,7 @@
 import { defineConfig } from 'astro/config';
 import tailwind from '@astrojs/tailwind';
 import sitemap from '@astrojs/sitemap';
+import node from '@astrojs/node';
 
 export default defineConfig({
   site: 'https://dealplustech.co.th',
@@ -10,6 +11,9 @@ export default defineConfig({
     }),
     sitemap(),
   ],
+  adapter: node({
+    mode: 'standalone',
+  }),
   i18n: {
     defaultLocale: 'th',
     locales: ['th'],