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/hrana-client/lib-esm/encoding/protobuf/encode.d.ts

@@ -0,0 +1,15 @@
+export type MessageFun<T> = (w: MessageWriter, msg: T) => void;
+export declare class MessageWriter {
+    #private;
+    constructor();
+    bytes(tag: number, value: Uint8Array): void;
+    string(tag: number, value: string): void;
+    message<T>(tag: number, value: T, fun: MessageFun<T>): void;
+    int32(tag: number, value: number): void;
+    uint32(tag: number, value: number): void;
+    bool(tag: number, value: boolean): void;
+    sint64(tag: number, value: bigint): void;
+    double(tag: number, value: number): void;
+    data(): Uint8Array;
+}
+export declare function writeProtobufMessage<T>(value: T, fun: MessageFun<T>): Uint8Array;