Add PostgreSQL support with SQLite/Postgres database compatibility layer

- Add dbGet/dbAll helper functions for database-agnostic queries
- Add toDbBool/convertBooleansForDb for boolean type conversion
- Add toDbDate/getNow for timestamp type handling
- Add generateId that returns UUID for Postgres, nanoid for SQLite
- Update all routes to use compatibility helpers
- Add normalizeEvent to return clean number types from Postgres decimal
- Add formatPrice utility for consistent price display
- Add legal pages admin interface with RichTextEditor
- Update carousel images
- Add drizzle migration files for PostgreSQL

frontend/src/lib/api.ts

@@ -967,3 +967,74 @@ export const siteSettingsApi = {
   getTimezones: () =>
     fetchApi<{ timezones: TimezoneOption[] }>('/api/site-settings/timezones'),
 };
+
+// ==================== Legal Pages Types ====================
+
+export interface LegalPage {
+  id: string;
+  slug: string;
+  title: string;
+  titleEs?: string | null;
+  contentText: string;
+  contentTextEs?: string | null;
+  contentMarkdown: string;
+  contentMarkdownEs?: string | null;
+  updatedAt: string;
+  updatedBy?: string | null;
+  createdAt: string;
+  source?: 'database' | 'filesystem';
+  hasEnglish?: boolean;
+  hasSpanish?: boolean;
+}
+
+export interface LegalPagePublic {
+  id?: string;
+  slug: string;
+  title: string;
+  contentMarkdown: string;
+  updatedAt?: string;
+  source?: 'database' | 'filesystem';
+}
+
+export interface LegalPageListItem {
+  id: string;
+  slug: string;
+  title: string;
+  updatedAt: string;
+  hasEnglish?: boolean;
+  hasSpanish?: boolean;
+}
+
+// ==================== Legal Pages API ====================
+
+export const legalPagesApi = {
+  // Public endpoints
+  getAll: (locale?: string) =>
+    fetchApi<{ pages: LegalPageListItem[] }>(`/api/legal-pages${locale ? `?locale=${locale}` : ''}`),
+  
+  getBySlug: (slug: string, locale?: string) =>
+    fetchApi<{ page: LegalPagePublic }>(`/api/legal-pages/${slug}${locale ? `?locale=${locale}` : ''}`),
+  
+  // Admin endpoints
+  getAdminList: () =>
+    fetchApi<{ pages: LegalPage[] }>('/api/legal-pages/admin/list'),
+  
+  getAdminPage: (slug: string) =>
+    fetchApi<{ page: LegalPage }>(`/api/legal-pages/admin/${slug}`),
+  
+  update: (slug: string, data: { 
+    contentMarkdown?: string; 
+    contentMarkdownEs?: string;
+    title?: string; 
+    titleEs?: string;
+  }) =>
+    fetchApi<{ page: LegalPage; message: string }>(`/api/legal-pages/admin/${slug}`, {
+      method: 'PUT',
+      body: JSON.stringify(data),
+    }),
+  
+  seed: () =>
+    fetchApi<{ message: string; seeded: number; pages?: string[] }>('/api/legal-pages/admin/seed', {
+      method: 'POST',
+    }),
+};