fix #12: add accounts table for Better Auth credential storage

src/lib/auth.ts

@@ -1,7 +1,7 @@
 import { betterAuth } from "better-auth";
 import { drizzleAdapter } from "better-auth/adapters/drizzle";
 import { db } from "./db";
-import { users, sessions } from "./db/schema";
+import { users, sessions, accounts } from "./db/schema";
 
 export const auth = betterAuth({
   database: drizzleAdapter(db, {
@@ -9,6 +9,7 @@ export const auth = betterAuth({
     schema: {
       user: users,
       session: sessions,
+      account: accounts,
     },
   }),
   emailAndPassword: { enabled: true },

src/lib/db/schema.ts

@@ -20,6 +20,24 @@ export const users = pgTable("users", {
   updatedAt: timestamp("updated_at", { withTimezone: true }).defaultNow().notNull(),
 });
 
+export const accounts = pgTable("accounts", {
+  id: text("id").primaryKey().$defaultFn(() => createId()),
+  userId: text("user_id")
+    .notNull()
+    .references(() => users.id, { onDelete: "cascade" }),
+  accountId: text("account_id").notNull(),
+  providerId: text("provider_id").notNull(),
+  accessToken: text("access_token"),
+  refreshToken: text("refresh_token"),
+  accessTokenExpiresAt: timestamp("access_token_expires_at"),
+  refreshTokenExpiresAt: timestamp("refresh_token_expires_at"),
+  scope: text("scope"),
+  idToken: text("id_token"),
+  password: text("password"),
+  createdAt: timestamp("created_at", { withTimezone: true }).defaultNow().notNull(),
+  updatedAt: timestamp("updated_at", { withTimezone: true }).defaultNow().notNull(),
+});
+
 export const comparisonStatusEnum = pgEnum("comparison_status", [
   "researching",
   "completed",