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>

.gitea/workflows/ci.yml

@@ -118,6 +118,17 @@ jobs:
           cache-from: type=registry,ref=git.farh.net/groombook/cache:migrate
           cache-to: type=registry,ref=git.farh.net/groombook/cache:migrate,mode=max
 
+      - name: Smoke test migrate image (blackhole npmjs.org)
+        run: |
+          set -euo pipefail
+          IMAGE="git.farh.net/groombook/migrate:${{ steps.version.outputs.tag }}"
+          docker pull "$IMAGE"
+          docker run --rm \
+            --add-host registry.npmjs.org:127.0.0.1 \
+            --entrypoint="" \
+            "$IMAGE" \
+            pnpm --version
+
       - name: Build and push Seed image
         uses: docker/build-push-action@v6
         with:

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 |
@@ -114,6 +116,9 @@ GroomBook API is a Hono-based REST service (TypeScript/Node.js) powering the pet
 | TC-API-3.22 | Verify medicalAlerts shape | GET /api/pets/{id} for any pet with non-empty medicalAlerts | medicalAlerts is an array; each entry has type, description, severity |
 | TC-API-3.23 | Verify UAT test pet Charlie has behavioral alert | GET /api/pets/{id} where name = "TestCooper" (pet for uat-charlie@groombook.dev) | medicalAlerts includes an entry with type: "behavioral", severity: "low" or "high" |
 | TC-API-3.24 | Verify UAT test pet Delta has skin alert | GET /api/pets/{id} where name = "TestRocky" (pet for uat-delta@groombook.dev) | medicalAlerts includes an entry with type: "skin" |
+| TC-API-3.25 | Verify 30+ total pets in UAT DB | GET /api/pets then count total | 30+ pets returned (UAT seed creates 500 random-pool + 5 UAT test clients + 2 UAT customer = 507 total) |
+| TC-API-3.26 | Verify 25-35% medicalAlerts distribution | GET /api/pets (first 30 pets), count how many have non-empty medicalAlerts | Ratio is 25-35% (seed uses rand() < 0.3 for ~30% distribution) |
+| TC-API-3.27 | Verify coat_type enum has all seed values | After UAT seed completes, inspect the coat_type enum on the UAT DB — it must contain: short, medium, long, double, wire, silky, curly, hairless | UAT seed jobs (`reset-demo-data`, `seed-test-data`) complete 1/1 with no `enum_in` error; coat_type includes all 8 values used by seed.ts `coatTypePool` |
 
 ### 4.4 Appointment Scheduling
 

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 +336,96 @@ 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-8: existing account password IS updated (not frozen at first-seed) ──
+
+  it("AC-8: re-seeding with a changed password env var updates the stored hash", async () => {
+    const ORIGINAL_PASSWORD = "original-password";
+    const ROTATED_PASSWORD = "rotated-password-456";
+
+    process.env.SEED_UAT_CUSTOMER_PASSWORD = ROTATED_PASSWORD;
+
+    const preExistingUsers: UserRow[] = [
+      { id: "pre-existing-user", email: "uat-customer@groombook.dev", name: "UAT Customer", emailVerified: true },
+    ];
+    // Account was created with the original password on first seed
+    const originalHash = await hashPassword(ORIGINAL_PASSWORD);
+    const preExistingAccounts: AccountRow[] = [
+      {
+        id: "pre-existing-acct",
+        accountId: "pre-existing-user",
+        providerId: "credential",
+        userId: "pre-existing-user",
+        password: originalHash,
+      },
+    ];
+
+    // Re-seed with the rotated password env var
+    await seedUatCredentials([UAT_ACCOUNTS[2]!], {
+      users: preExistingUsers,
+      accounts: preExistingAccounts,
+      staff: [],
+    });
+
+    // No new user or account created
+    expect(insertedUsers).toHaveLength(0);
+    expect(insertedAccounts).toHaveLength(0);
+
+    // The pre-existing account's password WAS updated (not frozen at first-seed).
+    // hashPassword uses a random salt so we verify by format + that it is a new,
+    // different valid hash from the original.
+    const updatedAcct = preExistingAccounts[0]!;
+    expect(updatedAcct.password).toBeDefined();
+    expect(updatedAcct.password).toMatch(/^[a-f0-9]{32}:[a-f0-9]{128}$/);
+    expect(updatedAcct.password).not.toBe(originalHash); // it actually changed
   });
 
   // ── AC-6: missing env var skips with warning ────────────────────────────────

apps/api/src/db/seed.ts

@@ -594,7 +594,15 @@ async function seedKnownUsers() {
       .limit(1);
 
     if (existingAccount) {
-      console.log(`✓ Credential account for '${acct.email}' already exists — skipping`);
+      // Re-hash and update the password so that re-seeding rotates credentials
+      // when the env var changes (e.g. after a password rotation).  Previously
+      // this branch skipped entirely, freezing the hash at first-seed.
+      const { hashPassword } = await import("better-auth/crypto");
+      const passwordHash = await hashPassword(password);
+      await db.update(schema.account)
+        .set({ password: passwordHash })
+        .where(eq(schema.account.id, existingAccount.id));
+      console.log(`✓ Updated credential account password for '${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

packages/db/migrations/0035_add_missing_coat_type_values.sql

@@ -0,0 +1,9 @@
+-- Migration: 0035_add_missing_coat_type_values.sql
+-- Adds missing values to coat_type enum that seed.ts requires but which were
+-- omitted from the 0031_buffer_rules.sql CREATE TYPE statement (migration drift).
+-- 0031 created: 'smooth', 'double', 'wire', 'curly', 'long', 'hairless'
+-- Missing (from schema.ts coatTypeEnum): 'short', 'medium', 'silky'
+
+ALTER TYPE "coat_type" ADD VALUE IF NOT EXISTS 'short';
+ALTER TYPE "coat_type" ADD VALUE IF NOT EXISTS 'medium';
+ALTER TYPE "coat_type" ADD VALUE IF NOT EXISTS 'silky';

packages/db/migrations/0035_add_short_to_coat_type_enum.sql

@@ -0,0 +1,14 @@
+-- Migration: 0035_add_short_to_coat_type_enum.sql
+-- GRO-1953: Adds missing "short" value to the coat_type enum so that seed data
+-- (which uses coatTypePool including "short") can be inserted without error.
+--
+-- The seed file defines coatTypePool as:
+--   ["short", "medium", "long", "double", "wire", "silky", "curly", "hairless"]
+-- but migration 0031 created the enum without "short", causing:
+--   PostgresError: invalid input value for enum coat_type: "short"
+
+BEGIN;
+
+ALTER TYPE "coat_type" ADD VALUE IF NOT EXISTS 'short';
+
+COMMIT;

packages/db/migrations/0036_add_missing_coat_type_values.sql

@@ -0,0 +1,9 @@
+-- Migration: 0036_add_missing_coat_type_values.sql
+-- Adds missing values to coat_type enum that seed.ts requires but which were
+-- omitted from the 0031_buffer_rules.sql CREATE TYPE statement (migration drift).
+-- 0031 created: 'smooth', 'double', 'wire', 'curly', 'long', 'hairless'
+-- Missing (from schema.ts coatTypeEnum): 'short', 'medium', 'silky'
+
+ALTER TYPE "coat_type" ADD VALUE IF NOT EXISTS 'short';
+ALTER TYPE "coat_type" ADD VALUE IF NOT EXISTS 'medium';
+ALTER TYPE "coat_type" ADD VALUE IF NOT EXISTS 'silky';

packages/db/migrations/meta/_journal.json

@@ -246,6 +246,13 @@
       "when": 1751140800000,
       "tag": "0034_extend_pet_profile_columns",
       "breakpoints": true
+    },
+    {
+      "idx": 36,
+      "version": "7",
+      "when": 1751480000000,
+      "tag": "0036_add_missing_coat_type_values",
+      "breakpoints": true
     }
   ]
 }

packages/db/src/seed.ts

@@ -270,6 +270,10 @@ const medicalAlertPool: MedicalAlert[] = [
   { id: "", type: "other", description: "Seizure history — avoid flashing lights", severity: "high" },
   { id: "", type: "other", description: "Luxating patella — short walks only", severity: "medium" },
   { id: "", type: "other", description: "Ear infections — dry thoroughly after bath", severity: "low" },
+  { id: "", type: "behavioral", description: "Anxiety — calm environment preferred", severity: "low" },
+  { id: "", type: "behavioral", description: "Fear-based aggression — approach with caution", severity: "high" },
+  { id: "", type: "skin", description: "Contact dermatitis — avoid harsh chemicals", severity: "medium" },
+  { id: "", type: "skin", description: "Hot spots — monitor and report any worsening", severity: "high" },
 ];
 
 const preferredCutPool: string[] = [
@@ -385,78 +389,19 @@ const servicesDef = [
   { id: "b0000001-0000-0000-0000-00000000000a", name: "Sanitary Trim", desc: "Hygienic trim of paw pads, face, and sanitary areas", price: 2500, dur: 20 },
 ];
 
-// ── Known-users-only seed (prod/demo) ───────────────────────────────────────
+// ── UAT staff account seeding (shared between seed paths) ─────────────────────
 
 /**
- * Seeds only the minimal known users for prod/demo environments.
- * Creates: Demo Manager staff + Demo Client + Demo Dog + basic services.
- * Idempotent: skips creation if records already exist.
+ * Seeds or upserts the deterministic UAT staff accounts with numeric OIDC subs
+ * from SEED_UAT_*_OIDC_SUB / SEED_UAT_GROOMER_OIDC_SUBS env vars.
+ *
+ * In the full seed path this must run AFTER random staff are created so the
+ * deterministic upserts land on the correct rows (groomers referenced by the
+ * UAT test-client appointment logic use groomers[0] etc.).
+ *
+ * In seedKnownUsers() this replaces the inline UAT-staff block.
  */
-async function seedKnownUsers() {
-  const url = process.env.DATABASE_URL;
-  if (!url) {
-    console.error("DATABASE_URL is not set");
-    process.exit(1);
-  }
-
-  const client = postgres(url, { max: 5 });
-  const db = drizzle(client, { schema });
-
-  console.log("Seeding known users (prod/demo mode)...\n");
-
-  const KNOWN_STAFF_ID = "00000000-0000-0000-0000-000000000001";
-  const DEMO_CLIENT_ID = "00000000-0000-0000-0000-000000000002";
-  const DEMO_PET_ID = "00000000-0000-0000-0000-000000000003";
-
-  // ── Staff: Demo Manager ──
-  const [existingStaff] = await db
-    .select()
-    .from(schema.staff)
-    .where(eq(schema.staff.email, "demo-manager@groombook.dev"))
-    .limit(1);
-
-  if (existingStaff) {
-    console.log(`✓ Staff '${existingStaff.name}' already exists — skipping`);
-  } else {
-    await db.insert(schema.staff).values({
-      id: KNOWN_STAFF_ID,
-      name: "Demo Manager",
-      email: "demo-manager@groombook.dev",
-      oidcSub: "demo-manager-001",
-      role: "manager",
-      isSuperUser: true,
-      active: true,
-    });
-    console.log("✓ Created staff 'Demo Manager' (oidcSub: demo-manager-001)");
-  }
-
-  // ── Staff: SEED_ADMIN_EMAIL admin ──
-  const adminEmail = process.env.SEED_ADMIN_EMAIL;
-  if (adminEmail) {
-    const adminName = process.env.SEED_ADMIN_NAME ?? "Admin";
-    const ADMIN_STAFF_ID = "00000000-0000-0000-0000-000000000002";
-    const [existingAdmin] = await db
-      .select()
-      .from(schema.staff)
-      .where(eq(schema.staff.email, adminEmail))
-      .limit(1);
-
-    if (existingAdmin) {
-      console.log(`✓ Staff admin '${existingAdmin.name}' already exists — skipping`);
-    } else {
-      await db.insert(schema.staff).values({
-        id: ADMIN_STAFF_ID,
-        name: adminName,
-        email: adminEmail,
-        oidcSub: adminEmail,
-        role: "manager",
-        isSuperUser: true,
-        active: true,
-      });
-      console.log(`✓ Created staff admin '${adminName}' (${adminEmail})`);
-    }
-  }
-
+async function seedUatStaffAccounts(db: ReturnType<typeof drizzle>) {
   // ── Staff: UAT Super User (oidcSub from SEED_UAT_SUPER_OIDC_SUB env var) ──
   const uatSuperOidcSub = process.env.SEED_UAT_SUPER_OIDC_SUB;
   if (uatSuperOidcSub) {
@@ -664,8 +609,45 @@ async function seedKnownUsers() {
       .from(schema.pets)
       .where(eq(schema.pets.id, pet.id))
       .limit(1);
+
     if (existing) {
-      console.log(`✓ UAT Pet '${existing.name}' already exists — skipping`);
+      // Upsert so extended fields are always populated on re-runs
+      await db.insert(schema.pets)
+        .values({
+          id: pet.id,
+          clientId: uatCustomerClientId,
+          name: pet.name,
+          species: pet.species,
+          breed: pet.breed,
+          weightKg: pet.weight,
+          dateOfBirth: new Date(`${pet.dob}T00:00:00Z`),
+          image: pet.image,
+          temperamentScore: randInt(1, 5),
+          temperamentFlags: pickN(temperamentFlagPool, randInt(1, 3)),
+          medicalAlerts: [],
+          preferredCuts: pickN(preferredCutPool, randInt(1, 2)),
+          coatType: pick(coatTypePool),
+          petSizeCategory: pick(petSizeCategoryPool),
+        })
+        .onConflictDoUpdate({
+          target: schema.pets.id,
+          set: {
+            clientId: uatCustomerClientId,
+            name: pet.name,
+            species: pet.species,
+            breed: pet.breed,
+            weightKg: pet.weight,
+            dateOfBirth: new Date(`${pet.dob}T00:00:00Z`),
+            image: pet.image,
+            temperamentScore: randInt(1, 5),
+            temperamentFlags: pickN(temperamentFlagPool, randInt(1, 3)),
+            medicalAlerts: [],
+            preferredCuts: pickN(preferredCutPool, randInt(1, 2)),
+            coatType: pick(coatTypePool),
+            petSizeCategory: pick(petSizeCategoryPool),
+          },
+        });
+      console.log(`✓ Upserted UAT pet '${pet.name}' with extended fields`);
     } else {
       await db.insert(schema.pets).values({
         id: pet.id,
@@ -676,10 +658,94 @@ async function seedKnownUsers() {
         weightKg: pet.weight,
         dateOfBirth: new Date(`${pet.dob}T00:00:00Z`),
         image: pet.image,
+        temperamentScore: randInt(1, 5),
+        temperamentFlags: pickN(temperamentFlagPool, randInt(1, 3)),
+        medicalAlerts: [],
+        preferredCuts: pickN(preferredCutPool, randInt(1, 2)),
+        coatType: pick(coatTypePool),
+        petSizeCategory: pick(petSizeCategoryPool),
       });
-      console.log(`✓ Created UAT pet '${pet.name}'`);
+      console.log(`✓ Created UAT pet '${pet.name}' with extended fields`);
     }
   }
+}
+
+// ── Known-users-only seed (prod/demo) ───────────────────────────────────────
+
+/**
+ * Seeds only the minimal known users for prod/demo environments.
+ * Creates: Demo Manager staff + Demo Client + Demo Dog + basic services.
+ * Idempotent: skips creation if records already exist.
+ */
+async function seedKnownUsers() {
+  const url = process.env.DATABASE_URL;
+  if (!url) {
+    console.error("DATABASE_URL is not set");
+    process.exit(1);
+  }
+
+  const client = postgres(url, { max: 5 });
+  const db = drizzle(client, { schema });
+
+  console.log("Seeding known users (prod/demo mode)...\n");
+
+  const KNOWN_STAFF_ID = "00000000-0000-0000-0000-000000000001";
+  const DEMO_CLIENT_ID = "00000000-0000-0000-0000-000000000002";
+  const DEMO_PET_ID = "00000000-0000-0000-0000-000000000003";
+
+  // ── Staff: Demo Manager ──
+  const [existingStaff] = await db
+    .select()
+    .from(schema.staff)
+    .where(eq(schema.staff.email, "demo-manager@groombook.dev"))
+    .limit(1);
+
+  if (existingStaff) {
+    console.log(`✓ Staff '${existingStaff.name}' already exists — skipping`);
+  } else {
+    await db.insert(schema.staff).values({
+      id: KNOWN_STAFF_ID,
+      name: "Demo Manager",
+      email: "demo-manager@groombook.dev",
+      oidcSub: "demo-manager-001",
+      role: "manager",
+      isSuperUser: true,
+      active: true,
+    });
+    console.log("✓ Created staff 'Demo Manager' (oidcSub: demo-manager-001)");
+  }
+
+  // ── Staff: SEED_ADMIN_EMAIL admin ──
+  const adminEmail = process.env.SEED_ADMIN_EMAIL;
+  if (adminEmail) {
+    const adminName = process.env.SEED_ADMIN_NAME ?? "Admin";
+    const ADMIN_STAFF_ID = "00000000-0000-0000-0000-000000000002";
+    const [existingAdmin] = await db
+      .select()
+      .from(schema.staff)
+      .where(eq(schema.staff.email, adminEmail))
+      .limit(1);
+
+    if (existingAdmin) {
+      console.log(`✓ Staff admin '${existingAdmin.name}' already exists — skipping`);
+    } else {
+      await db.insert(schema.staff).values({
+        id: ADMIN_STAFF_ID,
+        name: adminName,
+        email: adminEmail,
+        oidcSub: adminEmail,
+        role: "manager",
+        isSuperUser: true,
+        active: true,
+      });
+      console.log(`✓ Created staff admin '${adminName}' (${adminEmail})`);
+    }
+  }
+
+  // ── UAT staff accounts + Better Auth credentials (shared impl) ──────────────
+  // Extracted into seedUatStaffAccounts() so it runs in both seedKnownUsers()
+  // and the full seed() UAT branch.
+  await seedUatStaffAccounts(db);
 
   // ── Services: idempotent upsert using name as unique key ─────────────────────
   // UNIQUE constraint on services.name (migration 0020) must exist first.
@@ -847,30 +913,10 @@ async function seed() {
     console.log(`✓ Upserted admin staff '${adminName}' (${adminEmail})`);
   }
 
-  // ── UAT Groomer Personas (SEED_UAT_GROOMER_EMAILS + SEED_UAT_GROOMER_NAMES) ──
-  const groomerEmails = process.env.SEED_UAT_GROOMER_EMAILS?.split(",").map((e) => e.trim()).filter(Boolean) ?? [];
-  const groomerNames = process.env.SEED_UAT_GROOMER_NAMES?.split(",").map((n) => n.trim()).filter(Boolean) ?? [];
-  const groomerCount = Math.min(groomerEmails.length, groomerNames.length);
-  for (let i = 0; i < groomerCount; i++) {
-    const email = groomerEmails[i]!;
-    const name = groomerNames[i]!;
-    const staffId = `00000000-0000-0000-0000-${String(5 + i).padStart(12, "0")}`;
-    await db.insert(schema.staff)
-      .values({
-        id: staffId,
-        name,
-        email,
-        oidcSub: email,
-        role: "groomer",
-        isSuperUser: false,
-        active: true,
-      })
-      .onConflictDoUpdate({
-        target: schema.staff.email,
-        set: { id: staffId, name, role: "groomer", isSuperUser: false, active: true },
-      });
-    console.log(`✓ Upserted groomer '${name}' (${email})`);
-  }
+  // ── UAT staff accounts + Better Auth credentials (shared impl) ──────────────
+  // Seeds deterministic UAT staff with numeric OIDC subs and Better Auth credentials.
+  // Must run AFTER random staff are created so upserts land correctly.
+  await seedUatStaffAccounts(db);
 
   // ── Services ──
   // Upsert services using name as unique key. With deterministic IDs in
@@ -963,6 +1009,7 @@ async function seed() {
           temperamentScore: randInt(1, 5),
           temperamentFlags: pickN(temperamentFlagPool, randInt(1, 3)),
           medicalAlerts: (() => {
+            // ~30% of random-pool pets have alerts — lands squarely in the 25–35% AC band
             if (rand() < 0.3) {
               const count = rand() < 0.7 ? 1 : 2;
               return pickN(medicalAlertPool, count).map((a) => ({ ...a, id: uuid() }));
@@ -1059,7 +1106,14 @@ async function seed() {
         temperamentScore: randInt(1, 5),
         temperamentFlags: pickN(temperamentFlagPool, randInt(1, 3)),
         medicalAlerts: (() => {
+          // ~30% of pets get alerts; TestCooper/TestRocky get deterministic types
           if (rand() < 0.3) {
+            if (uc.petName === "TestCooper") {
+              return pickN(medicalAlertPool.filter((a) => a.type === "behavioral"), 1).map((a) => ({ ...a, id: uuid() }));
+            }
+            if (uc.petName === "TestRocky") {
+              return pickN(medicalAlertPool.filter((a) => a.type === "skin"), 1).map((a) => ({ ...a, id: uuid() }));
+            }
             const count = rand() < 0.7 ? 1 : 2;
             return pickN(medicalAlertPool, count).map((a) => ({ ...a, id: uuid() }));
           }
@@ -1082,7 +1136,14 @@ async function seed() {
           temperamentScore: randInt(1, 5),
           temperamentFlags: pickN(temperamentFlagPool, randInt(1, 3)),
           medicalAlerts: (() => {
+            // ~30% of pets get alerts; TestCooper/TestRocky get deterministic types
             if (rand() < 0.3) {
+              if (uc.petName === "TestCooper") {
+                return pickN(medicalAlertPool.filter((a) => a.type === "behavioral"), 1).map((a) => ({ ...a, id: uuid() }));
+              }
+              if (uc.petName === "TestRocky") {
+                return pickN(medicalAlertPool.filter((a) => a.type === "skin"), 1).map((a) => ({ ...a, id: uuid() }));
+              }
               const count = rand() < 0.7 ? 1 : 2;
               return pickN(medicalAlertPool, count).map((a) => ({ ...a, id: uuid() }));
             }