feat(db): move auth schema into Drizzle structure and add user FK

- Move auth schema from auth-schema.ts to lib/db/schema/auth.ts
- Export auth tables (user, session, account, verification, passkey) via barrel
- Add FK from performanceEntries.userId to user.id
- Generate and apply migration for auth tables + user FK
- Remove unused echarts dependency

lib/db/schema/auth.ts

@@ -0,0 +1,136 @@
+import { relations } from "drizzle-orm"
+import {
+  pgTable,
+  text,
+  timestamp,
+  boolean,
+  integer,
+  index,
+} from "drizzle-orm/pg-core"
+
+export const user = pgTable("user", {
+  id: text("id").primaryKey(),
+  name: text("name").notNull(),
+  email: text("email").notNull().unique(),
+  emailVerified: boolean("email_verified").default(false).notNull(),
+  image: text("image"),
+  createdAt: timestamp("created_at").defaultNow().notNull(),
+  updatedAt: timestamp("updated_at")
+    .defaultNow()
+    .$onUpdate(() => /* @__PURE__ */ new Date())
+    .notNull(),
+  role: text("role"),
+  banned: boolean("banned").default(false),
+  banReason: text("ban_reason"),
+  banExpires: timestamp("ban_expires"),
+})
+
+export const session = pgTable(
+  "session",
+  {
+    id: text("id").primaryKey(),
+    expiresAt: timestamp("expires_at").notNull(),
+    token: text("token").notNull().unique(),
+    createdAt: timestamp("created_at").defaultNow().notNull(),
+    updatedAt: timestamp("updated_at")
+      .$onUpdate(() => /* @__PURE__ */ new Date())
+      .notNull(),
+    ipAddress: text("ip_address"),
+    userAgent: text("user_agent"),
+    userId: text("user_id")
+      .notNull()
+      .references(() => user.id, { onDelete: "cascade" }),
+    impersonatedBy: text("impersonated_by"),
+  },
+  (table) => [index("session_userId_idx").on(table.userId)],
+)
+
+export const account = pgTable(
+  "account",
+  {
+    id: text("id").primaryKey(),
+    accountId: text("account_id").notNull(),
+    providerId: text("provider_id").notNull(),
+    userId: text("user_id")
+      .notNull()
+      .references(() => user.id, { onDelete: "cascade" }),
+    accessToken: text("access_token"),
+    refreshToken: text("refresh_token"),
+    idToken: text("id_token"),
+    accessTokenExpiresAt: timestamp("access_token_expires_at"),
+    refreshTokenExpiresAt: timestamp("refresh_token_expires_at"),
+    scope: text("scope"),
+    password: text("password"),
+    createdAt: timestamp("created_at").defaultNow().notNull(),
+    updatedAt: timestamp("updated_at")
+      .$onUpdate(() => /* @__PURE__ */ new Date())
+      .notNull(),
+  },
+  (table) => [index("account_userId_idx").on(table.userId)],
+)
+
+export const verification = pgTable(
+  "verification",
+  {
+    id: text("id").primaryKey(),
+    identifier: text("identifier").notNull(),
+    value: text("value").notNull(),
+    expiresAt: timestamp("expires_at").notNull(),
+    createdAt: timestamp("created_at").defaultNow().notNull(),
+    updatedAt: timestamp("updated_at")
+      .defaultNow()
+      .$onUpdate(() => /* @__PURE__ */ new Date())
+      .notNull(),
+  },
+  (table) => [index("verification_identifier_idx").on(table.identifier)],
+)
+
+export const passkey = pgTable(
+  "passkey",
+  {
+    id: text("id").primaryKey(),
+    name: text("name"),
+    publicKey: text("public_key").notNull(),
+    userId: text("user_id")
+      .notNull()
+      .references(() => user.id, { onDelete: "cascade" }),
+    credentialID: text("credential_id").notNull(),
+    counter: integer("counter").notNull(),
+    deviceType: text("device_type").notNull(),
+    backedUp: boolean("backed_up").notNull(),
+    transports: text("transports"),
+    createdAt: timestamp("created_at"),
+    aaguid: text("aaguid"),
+  },
+  (table) => [
+    index("passkey_userId_idx").on(table.userId),
+    index("passkey_credentialID_idx").on(table.credentialID),
+  ],
+)
+
+export const userRelations = relations(user, ({ many }) => ({
+  sessions: many(session),
+  accounts: many(account),
+  passkeys: many(passkey),
+}))
+
+export const sessionRelations = relations(session, ({ one }) => ({
+  user: one(user, {
+    fields: [session.userId],
+    references: [user.id],
+  }),
+}))
+
+export const accountRelations = relations(account, ({ one }) => ({
+  user: one(user, {
+    fields: [account.userId],
+    references: [user.id],
+  }),
+}))
+
+export const passkeyRelations = relations(passkey, ({ one }) => ({
+  user: one(user, {
+    fields: [passkey.userId],
+    references: [user.id],
+  }),
+}))

lib/db/schema/index.ts

@@ -1,4 +1,5 @@
 // Barrel export — will be populated as schema files are created
+export * from "./auth"
 export * from "./games"
 export * from "./gameVersions"
 export * from "./hardware"

lib/db/schema/performanceEntries.ts

@@ -8,6 +8,7 @@ import {
 } from "drizzle-orm/pg-core"
 import { gameVersions } from "./gameVersions"
 import { hardware } from "./hardware"
+import { user } from "./auth"
 
 export const performanceEntries = pgTable("performance_entries", {
   id: text("id")
@@ -19,7 +20,9 @@ export const performanceEntries = pgTable("performance_entries", {
   hardwareSlug: text("hardware_slug")
     .notNull()
     .references(() => hardware.slug, { onDelete: "restrict" }),
-  userId: text("user_id").notNull(),
+  userId: text("user_id")
+    .notNull()
+    .references(() => user.id, { onDelete: "cascade" }),
 
   // Performance metrics
   fpsAvg: real("fps_avg").notNull(),