feat: add users, sessions, and api_keys tables

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/db/schema.ts

@@ -98,3 +98,30 @@ export const settings = sqliteTable("settings", {
 	key: text("key").primaryKey(),
 	value: text("value").notNull(),
 });
+
+export const users = sqliteTable("users", {
+	id: integer("id").primaryKey({ autoIncrement: true }),
+	username: text("username").notNull().unique(),
+	passwordHash: text("password_hash").notNull(),
+	createdAt: integer("created_at", { mode: "timestamp" })
+		.notNull()
+		.$defaultFn(() => new Date()),
+});
+
+export const sessions = sqliteTable("sessions", {
+	id: text("id").primaryKey(),
+	userId: integer("user_id")
+		.notNull()
+		.references(() => users.id, { onDelete: "cascade" }),
+	expiresAt: integer("expires_at", { mode: "timestamp" }).notNull(),
+});
+
+export const apiKeys = sqliteTable("api_keys", {
+	id: integer("id").primaryKey({ autoIncrement: true }),
+	name: text("name").notNull(),
+	keyHash: text("key_hash").notNull(),
+	keyPrefix: text("key_prefix").notNull(),
+	createdAt: integer("created_at", { mode: "timestamp" })
+		.notNull()
+		.$defaultFn(() => new Date()),
+});