feat(backend): initial setup for cms backend service

backend/src/db/schema.ts

@@ -0,0 +1,62 @@
+import { sqliteTable, text, integer } from 'drizzle-orm/sqlite-core';
+import { sql } from 'drizzle-orm';
+
+// Users table - stores Gitea user info for audit and access control
+export const users = sqliteTable('users', {
+  id: text('id').primaryKey().$defaultFn(() => crypto.randomUUID()),
+  giteaId: text('gitea_id').notNull().unique(),
+  giteaUsername: text('gitea_username').notNull(),
+  giteaEmail: text('gitea_email'),
+  displayName: text('display_name'),
+  avatarUrl: text('avatar_url'),
+  role: text('role').default('admin'),
+  createdAt: integer('created_at', { mode: 'timestamp' }).default(sql`(unixepoch())`),
+  lastLogin: integer('last_login', { mode: 'timestamp' }),
+});
+
+// Events table
+export const events = sqliteTable('events', {
+  id: text('id').primaryKey().$defaultFn(() => crypto.randomUUID()),
+  title: text('title').notNull(),
+  date: text('date').notNull(),
+  description: text('description').notNull(),
+  imageUrl: text('image_url').notNull(),
+  displayOrder: integer('display_order').notNull(),
+  isPublished: integer('is_published', { mode: 'boolean' }).default(true),
+  createdAt: integer('created_at', { mode: 'timestamp' }).default(sql`(unixepoch())`),
+  updatedAt: integer('updated_at', { mode: 'timestamp' }).default(sql`(unixepoch())`),
+});
+
+// Gallery images table
+export const galleryImages = sqliteTable('gallery_images', {
+  id: text('id').primaryKey().$defaultFn(() => crypto.randomUUID()),
+  imageUrl: text('image_url').notNull(),
+  altText: text('alt_text').notNull(),
+  displayOrder: integer('display_order').notNull(),
+  isPublished: integer('is_published', { mode: 'boolean' }).default(true),
+  createdAt: integer('created_at', { mode: 'timestamp' }).default(sql`(unixepoch())`),
+});
+
+// Content sections table (for text-based sections)
+export const contentSections = sqliteTable('content_sections', {
+  id: text('id').primaryKey().$defaultFn(() => crypto.randomUUID()),
+  sectionName: text('section_name').notNull().unique(),
+  contentJson: text('content_json', { mode: 'json' }).notNull(),
+  updatedAt: integer('updated_at', { mode: 'timestamp' }).default(sql`(unixepoch())`),
+});
+
+// Site settings table (global config)
+export const siteSettings = sqliteTable('site_settings', {
+  key: text('key').primaryKey(),
+  value: text('value').notNull(),
+  updatedAt: integer('updated_at', { mode: 'timestamp' }).default(sql`(unixepoch())`),
+});
+
+// Publish history (audit log)
+export const publishHistory = sqliteTable('publish_history', {
+  id: text('id').primaryKey().$defaultFn(() => crypto.randomUUID()),
+  userId: text('user_id').references(() => users.id),
+  commitHash: text('commit_hash'),
+  commitMessage: text('commit_message'),
+  publishedAt: integer('published_at', { mode: 'timestamp' }).default(sql`(unixepoch())`),
+});