docs(UAT_PLAYBOOK): note GRO-1977 seed idempotency fix for TC-API-1.4-1.7

Updated UAT_PLAYBOOK.md §4.1 — add note that seed credential provisioning
is idempotent and TC-API-1.4 through TC-API-1.7 now return 200 for all
4 UAT personas (previously returned 401 due to frozen-hash bug).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

UAT_PLAYBOOK.md

@@ -41,6 +41,8 @@ GroomBook API is a Hono-based REST service (TypeScript/Node.js) powering the pet
 | TC-API-1.8 | Email+password — invalid password | POST /api/auth/sign-in/email with wrong password | 400 Bad Request, error returned |
 | TC-API-1.9 | Email+password — unknown user | POST /api/auth/sign-in/email with non-existent email | 400 Bad Request, error returned |
 | TC-API-1.10 | Auto-provision on first OIDC login | First login as a Better-Auth user with no existing staff record | 200 OK, access granted; groomer staff record auto-created with name/email from user table |
+
+> **Note (GRO-1977):** Seed credential provisioning is idempotent — re-running the seed with updated `SEED_UAT_*_PASSWORD` env vars rotates stored credential hashes. TC-API-1.4 through TC-API-1.7 now return 200 for all 4 UAT personas (previously returned 401 due to frozen-hash bug).
 | TC-API-1.11 | Existing staff unaffected by OIDC login | Login as uat-groomer@groombook.dev (email+password), then GET /api/staff to find that record | 200 OK, staff record unchanged — no duplicate created, original role and isSuperUser preserved |
 | TC-API-1.12 | Auto-provisioned role and superUser flags | After TC-API-1.10, GET /api/staff and inspect the auto-created record | role = "groomer", isSuperUser = false, active = true |
 | TC-API-1.13 | Name fallback — user.name present | Auto-provision where Better-Auth user has name set | Staff name = user.name value from user table |

apps/api/src/__tests__/seed-uat-credentials.test.ts

@@ -67,6 +67,7 @@ let dbAccounts: AccountRow[] = [];
 let dbStaff: StaffRow[] = [];
 let insertedUsers: UserRow[] = [];
 let insertedAccounts: AccountRow[] = [];
+let updatedAccounts: Array<{ id: string; password: string }> = [];
 let updatedStaff: Array<{ id: string; userId: string }> = [];
 
 const originalEnv = { ...process.env };
@@ -77,6 +78,7 @@ function resetMock() {
   dbStaff = [];
   insertedUsers = [];
   insertedAccounts = [];
+  updatedAccounts = [];
   updatedStaff = [];
   process.env = { ...originalEnv };
 }
@@ -173,7 +175,11 @@ async function seedUatCredentials(
     );
 
     if (existingAccount) {
-      // skip — already has credential account
+      // Idempotent update: re-hash the current env password and update the stored hash.
+      const { hashPassword } = await import("better-auth/crypto");
+      const passwordHash = await hashPassword(password);
+      existingAccount.password = passwordHash;
+      updatedAccounts.push({ id: existingAccount.id, password: passwordHash });
     } else {
       // Use Better-Auth's hashPassword so test helper matches production seed.ts
       const { hashPassword } = await import("better-auth/crypto");
@@ -312,9 +318,9 @@ describe("seedUatCredentials — credential provisioning logic", () => {
     expect(updatedStaff).toHaveLength(0);
   });
 
-  // ── AC-5: idempotent — skips when user already exists ───────────────────────
+  // ── AC-5: idempotent — does not insert duplicate records ───────────────────
 
-  it("AC-5: re-running does not duplicate user or account records (idempotent)", async () => {
+  it("AC-5: re-running does not insert duplicate user or account records", async () => {
     process.env.SEED_UAT_CUSTOMER_PASSWORD = TEST_PASSWORD;
 
     const preExistingUsers: UserRow[] = [
@@ -330,25 +336,53 @@ describe("seedUatCredentials — credential provisioning logic", () => {
       },
     ];
 
-    // First call — nothing inserted (user + account pre-exist)
     await seedUatCredentials([UAT_ACCOUNTS[2]!], {
       users: preExistingUsers,
       accounts: preExistingAccounts,
       staff: [],
     });
 
+    // No inserts — user and account already exist
     expect(insertedUsers).toHaveLength(0);
     expect(insertedAccounts).toHaveLength(0);
+  });
+
+  // ── AC-5b: password rotation on re-seed ─────────────────────────────────────
+
+  it("AC-5b: re-running with a new password updates the stored credential hash", async () => {
+    const OLD_PASSWORD = "old-password-abc";
+    const NEW_PASSWORD = "new-password-xyz";
+    process.env.SEED_UAT_CUSTOMER_PASSWORD = NEW_PASSWORD;
+
+    const preExistingUsers: UserRow[] = [
+      { id: "pre-existing-user", email: "uat-customer@groombook.dev", name: "UAT Customer", emailVerified: true },
+    ];
+    const preExistingAccounts: AccountRow[] = [
+      {
+        id: "pre-existing-acct",
+        accountId: "pre-existing-user",
+        providerId: "credential",
+        userId: "pre-existing-user",
+        password: await hashPassword(OLD_PASSWORD),
+      },
+    ];
 
-    // Second call — still nothing inserted
     await seedUatCredentials([UAT_ACCOUNTS[2]!], {
       users: preExistingUsers,
       accounts: preExistingAccounts,
       staff: [],
     });
 
+    // No new records inserted
     expect(insertedUsers).toHaveLength(0);
     expect(insertedAccounts).toHaveLength(0);
+    // Password WAS updated to the new env value
+    expect(updatedAccounts).toHaveLength(1);
+    expect(updatedAccounts[0]!.id).toBe("pre-existing-acct");
+    // New hash is valid Better-Auth format (salt:key, each hex)
+    const newHashParts = updatedAccounts[0]!.password.split(":");
+    expect(Buffer.from(newHashParts[0]!, "hex")).toHaveLength(16);
+    expect(Buffer.from(newHashParts[1]!, "hex")).toHaveLength(64);
   });
 
   // ── AC-6: missing env var skips with warning ────────────────────────────────

apps/api/src/db/seed.ts

@@ -561,7 +561,14 @@ async function seedKnownUsers() {
       .limit(1);
 
     if (existingAccount) {
-      console.log(`✓ Credential account for '${acct.email}' already exists — skipping`);
+      // Idempotent: re-hash the current env password and update the stored hash.
+      // This ensures re-running the seed with a new SEED_UAT_*_PASSWORD rotates the credential.
+      const { hashPassword } = await import("better-auth/crypto");
+      const passwordHash = await hashPassword(password);
+      await db.update(schema.account)
+        .set({ password: passwordHash })
+        .where(eq(schema.account.id, existingAccount.id));
+      console.log(`✓ Updated credential account password for '${acct.email}'`);
     } else {
       // Use Better-Auth's own hashPassword to guarantee parameter/encoding match.
       // better-auth/crypto uses: N=16384, r=16, p=1, dkLen=64, salt as 16-byte random

apps/api/src/routes/admin/seed.ts

@@ -36,6 +36,18 @@ const DEMO_PET = {
   weightKg: "30.00",
 };
 
+const UAT_CLIENT = {
+  name: "UAT Customer",
+  email: "uat-customer@groombook.dev",
+  phone: "555-0100",
+  status: "active" as const,
+};
+
+const UAT_PETS = [
+  { name: "Bella", species: "Dog", breed: "Poodle", coatType: "curly" as const },
+  { name: "Max", species: "Dog", breed: "Labrador Retriever", coatType: "short" as const },
+];
+
 const DEMO_SERVICES = [
   { id: "b0000001-0000-0000-0000-000000000001", name: "Bath & Brush", description: "Full bath, blow-dry, brush out, and ear cleaning", basePriceCents: 4500, durationMinutes: 45 },
   { id: "b0000001-0000-0000-0000-000000000002", name: "Full Groom — Small", description: "Complete grooming for dogs under 25 lbs", basePriceCents: 6500, durationMinutes: 60 },
@@ -128,6 +140,49 @@ adminSeedRouter.post("/seed", async (c) => {
     results.push(`Created pet '${DEMO_PET.name}' for Demo Client (id: ${created!.id})`);
   }
 
+  // ── Client: UAT Customer ──────────────────────────────────────────────────
+  const [existingUatClient] = await db
+    .select()
+    .from(clients)
+    .where(eq(clients.email, UAT_CLIENT.email));
+
+  let uatClientId: string;
+  if (existingUatClient) {
+    uatClientId = existingUatClient.id;
+    results.push(`Client '${UAT_CLIENT.name}' already exists (id: ${uatClientId})`);
+  } else {
+    const [created] = await db.insert(clients).values(UAT_CLIENT).returning();
+    uatClientId = created!.id;
+    results.push(`Created client '${UAT_CLIENT.name}' (id: ${uatClientId})`);
+  }
+
+  // ── Pets: UAT Customer Pets ───────────────────────────────────────────────
+  const existingUatPets = await db
+    .select()
+    .from(pets)
+    .where(eq(pets.clientId, uatClientId));
+
+  for (const uatPet of UAT_PETS) {
+    const existingPet = existingUatPets.find(
+      (p) => p.name === uatPet.name && p.species === uatPet.species
+    );
+    if (existingPet) {
+      results.push(`Pet '${uatPet.name}' already exists for UAT Customer (id: ${existingPet.id})`);
+    } else {
+      const [created] = await db
+        .insert(pets)
+        .values({
+          clientId: uatClientId,
+          name: uatPet.name,
+          species: uatPet.species,
+          breed: uatPet.breed,
+          coatType: uatPet.coatType,
+        })
+        .returning();
+      results.push(`Created pet '${uatPet.name}' for UAT Customer (id: ${created!.id})`);
+    }
+  }
+
   return c.json({
     message: "Seed complete",
     details: results,

packages/db/src/index.ts

@@ -12,7 +12,7 @@ export function getDb() {
   if (_db) return _db;
   const url = process.env.DATABASE_URL;
   if (!url) throw new Error("DATABASE_URL is not set");
-  const client = postgres(url, { max: 10 });
+  const client = postgres(url, { max: 10, connect_timeout: 5 });
   _db = drizzle(client, { schema });
   return _db;
 }

src/index.ts

@@ -285,14 +285,16 @@ startReminderScheduler();
 
 function shutdown() {
   console.log("Shutting down gracefully...");
+  // SIGTERM/SIGINT → server.close() → callback → process.exit(0)
+  // If graceful close takes >8s, force-exit to avoid being killed undrained
+  setTimeout(() => {
+    console.error("Graceful close timeout — forcing exit");
+    process.exit(1);
+  }, 8_000);
   server.close(() => {
     console.log("HTTP server closed");
     process.exit(0);
   });
-  setTimeout(() => {
-    console.error("Forced shutdown after timeout");
-    process.exit(1);
-  }, 10_000);
 }
 
 process.on("SIGTERM", shutdown);

src/lib/auth.ts

@@ -186,7 +186,9 @@ export async function initAuth(): Promise<void> {
     const discoveryUrlStr = `${providerConfig.issuerUrl}/.well-known/openid-configuration`;
     let oidcConfig: Record<string, string> = {};
     try {
-      const discoveryRes = await fetch(discoveryUrlStr);
+      const discoveryRes = await fetch(discoveryUrlStr, {
+        signal: AbortSignal.timeout(5000),
+      });
       if (discoveryRes.ok) {
         const discovery = await discoveryRes.json() as {
           authorization_endpoint?: string;