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/@libsql/client/lib-esm/sql_cache.d.ts

@@ -0,0 +1,7 @@
+import type * as hrana from "@libsql/hrana-client";
+export declare class SqlCache {
+    #private;
+    capacity: number;
+    constructor(owner: hrana.SqlOwner, capacity: number);
+    apply(hranaStmts: Array<hrana.Stmt>): void;
+}