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/loadConfig.d.ts

@@ -0,0 +1,7 @@
+import type { CookieBannerConfig } from "../types/config.js";
+/**
+ * Safely loads the user config file and merges it with defaults.
+ * User values always override defaults.
+ * Cache-busted to ensure updates are picked up during dev.
+ */
+export declare function loadUserConfig(projectRoot: string): Promise<CookieBannerConfig>;