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/astro-consent/dist/config/defaults.d.ts

@@ -0,0 +1,13 @@
+import type { CookieBannerConfig } from "../types/config.js";
+/**
+ * DEFAULT_CONFIG
+ * ---------------------------------------------------------
+ * Fallback values ONLY.
+ *
+ * These are used:
+ * - when the user omits a value
+ * - during internal normalisation
+ *
+ * User-provided config ALWAYS takes priority.
+ */
+export declare const DEFAULT_CONFIG: CookieBannerConfig;