feat: Add complete PDPA compliance pages

- Admin dashboard (/admin/consent-logs) with password auth
- Consent API (/api/consent) with SQLite + IP hashing
- Privacy Policy (Thai) - PDPA Section 36 compliant
- Terms & Conditions (Thai) - 9 standard clauses
- .env.example template with Umami placeholder

All pages preserve current design system.

dealplustech-astro/node_modules/promise-limit/.eslintrc

@@ -0,0 +1,9 @@
+{
+  "extends": [
+    "standard",
+    "plugin:es5/no-es2015"
+  ],
+  "rules": {
+    "no-console": "error"
+  }
+}