feat: 初始化慧遇书院官网一期

server/database/migrations/002_media_assets.sql

@@ -0,0 +1,25 @@
+CREATE TABLE IF NOT EXISTS media_assets (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  asset_key TEXT NOT NULL UNIQUE,
+  original_name TEXT NOT NULL,
+  mime_type TEXT NOT NULL,
+  extension TEXT NOT NULL,
+  bytes INTEGER NOT NULL,
+  width INTEGER NOT NULL,
+  height INTEGER NOT NULL,
+  original_path TEXT NOT NULL,
+  derived_path TEXT NOT NULL,
+  thumbnail_path TEXT NOT NULL,
+  alt_text TEXT NOT NULL DEFAULT '',
+  source_text TEXT NOT NULL DEFAULT '',
+  copyright_text TEXT NOT NULL DEFAULT '',
+  authorization_status TEXT NOT NULL DEFAULT 'pending' CHECK (authorization_status IN ('pending', 'authorized', 'restricted')),
+  status TEXT NOT NULL DEFAULT 'active' CHECK (status IN ('active', 'trash', 'deleted')),
+  created_by INTEGER,
+  created_at TEXT NOT NULL,
+  updated_at TEXT NOT NULL,
+  deleted_at TEXT,
+  FOREIGN KEY (created_by) REFERENCES admin_users(id)
+);
+
+CREATE INDEX IF NOT EXISTS idx_media_assets_status_created ON media_assets(status, created_at DESC);