Add contact relay and DMCA workflow

database/schema.sql

@@ -40,6 +40,24 @@ CREATE TABLE IF NOT EXISTS notifications (
 );
 CREATE INDEX IF NOT EXISTS notifications_user_created_idx ON notifications(user_id, created_at DESC);
 CREATE INDEX IF NOT EXISTS notifications_user_unread_idx ON notifications(user_id, read_at, created_at DESC);
+CREATE TABLE IF NOT EXISTS contact_messages (
+	id TEXT PRIMARY KEY,
+	sender_user_id TEXT REFERENCES users(id) ON DELETE SET NULL,
+	sender_name TEXT NOT NULL,
+	sender_email TEXT NOT NULL,
+	team TEXT NOT NULL CHECK(team IN ('oversight', 'administrators', 'dmca')),
+	subject TEXT NOT NULL,
+	body TEXT NOT NULL,
+	dmca_json TEXT,
+	created_at TEXT NOT NULL
+);
+CREATE TABLE IF NOT EXISTS contact_message_recipients (
+	message_id TEXT NOT NULL REFERENCES contact_messages(id) ON DELETE CASCADE,
+	user_id TEXT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+	PRIMARY KEY(message_id, user_id)
+);
+CREATE INDEX IF NOT EXISTS contact_messages_created_idx ON contact_messages(created_at DESC);
+CREATE INDEX IF NOT EXISTS contact_message_recipients_user_idx ON contact_message_recipients(user_id, message_id);
 CREATE TABLE IF NOT EXISTS notification_preferences (
 	user_id TEXT NOT NULL REFERENCES users(id) ON DELETE CASCADE,
 	category TEXT NOT NULL CHECK(category IN ('isac', 'contributions', 'comments', 'builds', 'guides', 'system')),