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/sqlite-error.js

@@ -0,0 +1,21 @@
+'use strict';
+const descriptor = { value: 'SqliteError', writable: true, enumerable: false, configurable: true };
+
+function SqliteError(message, code, rawCode) {
+        if (new.target !== SqliteError) {
+                return new SqliteError(message, code);
+        }
+        if (typeof code !== 'string') {
+                throw new TypeError('Expected second argument to be a string');
+        }
+        Error.call(this, message);
+        descriptor.value = '' + message;
+        Object.defineProperty(this, 'message', descriptor);
+        Error.captureStackTrace(this, SqliteError);
+        this.code = code;
+        this.rawCode = rawCode
+}
+Object.setPrototypeOf(SqliteError, Error);
+Object.setPrototypeOf(SqliteError.prototype, Error.prototype);
+Object.defineProperty(SqliteError.prototype, 'name', descriptor);
+module.exports = SqliteError;