refactor(db): drop the runtime schema mirror

ensureDbCompatibility ran ALTER TABLE / CREATE TABLE IF NOT EXISTS on the
login, register, token and session paths, mirroring columns every
migration under prisma/migrations already creates. The entrypoint applies
those migrations before the server listens and stops the boot when one
fails, so the mirror never had work to do, and DDL on a request path
needs the table's owner: a connection that may only read and write rows
fails every login on it. Drop the module, its call sites and the mocks
that stubbed it out.

src/__tests__/api/analytics/since-cap.test.ts

@@ -46,10 +46,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
 // The slim slice now strips disabled-module types before answering, from

src/__tests__/api/auth/login/mfa-branch.test.ts

@@ -23,9 +23,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/auth/hmac", () => ({ hashToken: vi.fn(() => "h") }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 vi.mock("@/lib/rate-limit", () => ({
   checkAuthSurfaceRateLimit: vi.fn().mockResolvedValue({

src/__tests__/api/auth/mfa/verify.test.ts

@@ -3,9 +3,6 @@ import { describe, it, expect, vi, beforeEach } from "vitest";
 vi.mock("@/lib/db", () => ({
   prisma: { user: { findUnique: vi.fn() } },
 }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),

src/__tests__/api/auth/registration-status/route.test.ts

@@ -37,10 +37,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
 vi.mock("next/headers", () => ({

src/__tests__/baselines/version-stamp-comments.json

@@ -1959,7 +1959,6 @@
     "lib/day/values.ts": 1,
     "lib/day/visit-preparation.ts": 1,
     "lib/day/wire-schemas.ts": 1,
-    "lib/db-compat.ts": 1,
     "lib/devices/__tests__/revoke.test.ts": 1,
     "lib/devices/revoke.ts": 1,
     "lib/doctor-report-helpers.ts": 1,

src/__tests__/sql-now-utc-guard.test.ts

@@ -47,10 +47,6 @@ const ALLOWED: Record<string, { hits: number; why: string }> = {
     hits: 1,
     why: "pg-boss tables are timestamptz",
   },
-  "src/lib/db-compat.ts": {
-    hits: 1,
-    why: "DDL default on a timestamptz column",
-  },
 };
 
 const SQL_CLOCK =

src/__tests__/tz-day-paths-harness.test.ts

@@ -65,9 +65,6 @@ vi.mock("@/lib/rollups/measurement-read", () => ({
 vi.mock("@/lib/analytics/mood-series", () => ({
   buildMoodDailySeries: vi.fn(),
 }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/admin/import-apple-health-export/__tests__/route.test.ts

@@ -12,9 +12,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/admin/maintenance/measurements/__tests__/status.test.ts

@@ -12,9 +12,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/admin/maintenance/pulse-day-mean/__tests__/route.test.ts

@@ -18,9 +18,6 @@ vi.mock("@/lib/auth/audit", () => ({
 }));
 vi.mock("@/lib/jobs/boss-instance", () => ({ getGlobalBoss: vi.fn() }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/admin/settings/assistant-flags/__tests__/route.test.ts

@@ -15,9 +15,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/admin/settings/module-availability/__tests__/route.test.ts

@@ -15,9 +15,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/analytics/__tests__/route.test.ts

@@ -75,10 +75,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/insights/correlation-patterns", () => ({
   PATTERN_FAMILIES: { fixed: "FIXED" },
   syncAcceptedPatterns: vi.fn().mockResolvedValue(new Map()),

src/app/api/auth/login/__tests__/constant-work.test.ts

@@ -58,10 +58,6 @@ vi.mock("@/lib/rate-limit", () => ({
   refundRateLimit: vi.fn(async () => undefined),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/auth/hmac", () => ({
   hashToken: vi.fn(() => "aa".repeat(32)),
 }));

src/app/api/auth/login/__tests__/native-token.test.ts

@@ -61,10 +61,6 @@ vi.mock("@/lib/rate-limit", () => ({
   refundRateLimit: vi.fn(async () => undefined),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/auth/hmac", () => ({
   hashToken: vi.fn((raw: string) => `hashed:${raw}`),
 }));
@@ -90,7 +86,6 @@ import {
   checkAuthSurfaceRateLimit,
   rateLimitHeaders,
 } from "@/lib/rate-limit";
-import { ensureDbCompatibility } from "@/lib/db-compat";
 import { auditLog } from "@/lib/auth/audit";
 import { createSession } from "@/lib/auth/session";
 
@@ -136,7 +131,6 @@ beforeEach(() => {
     ip: "203.0.113.1",
   } as never);
   vi.mocked(rateLimitHeaders).mockReturnValue({} as never);
-  vi.mocked(ensureDbCompatibility).mockResolvedValue(undefined);
   vi.mocked(auditLog).mockResolvedValue(undefined as never);
   vi.mocked(createSession).mockResolvedValue("session-id");
 });

src/app/api/auth/login/__tests__/route.test.ts

@@ -52,10 +52,6 @@ vi.mock("@/lib/rate-limit", () => ({
   rateLimitHeaders: vi.fn(() => ({})),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/auth/hmac", () => ({
   // Return a deterministic hex string that does NOT echo the raw
   // value — mirrors the real HMAC-SHA256 shape. The audit row's
@@ -88,7 +84,6 @@ import {
   checkAuthSurfaceRateLimit,
   rateLimitHeaders,
 } from "@/lib/rate-limit";
-import { ensureDbCompatibility } from "@/lib/db-compat";
 
 const TYPED_EMAIL = "leaked-identifier@example.com";
 
@@ -117,7 +112,6 @@ beforeEach(() => {
     ip: "1.2.3.4",
   } as never);
   vi.mocked(rateLimitHeaders).mockReturnValue({} as never);
-  vi.mocked(ensureDbCompatibility).mockResolvedValue(undefined);
 });
 
 describe("POST /api/auth/login — auth.login.failed audit row (H-1)", () => {

src/app/api/auth/login/__tests__/trusted-device.test.ts

@@ -52,10 +52,6 @@ vi.mock("@/lib/rate-limit", () => ({
   refundRateLimit: vi.fn(async () => undefined),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/auth/hmac", () => ({ hashToken: vi.fn(() => "h") }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 vi.mock("next/headers", () => ({

src/app/api/auth/login/route.ts

@@ -11,7 +11,6 @@ import {
 } from "@/lib/api-response";
 import { checkAuthSurfaceRateLimit, rateLimitHeaders } from "@/lib/rate-limit";
 import { beginAccountLoginAttempt } from "@/lib/auth/login-throttle";
-import { ensureDbCompatibility } from "@/lib/db-compat";
 import { NextRequest, NextResponse } from "next/server";
 import { apiHandler } from "@/lib/api-handler";
 import { annotate } from "@/lib/logging/context";
@@ -59,8 +58,6 @@ export const POST = apiHandler(async (request: NextRequest) => {
     );
   }
 
-  await ensureDbCompatibility();
-
   const { data: body, error: jsonError } = await safeJson(request, {
     maxBytes: 64 * 1024,
   });

src/app/api/auth/mfa/verify/route.ts

@@ -27,7 +27,6 @@ import { apiHandler } from "@/lib/api-handler";
 import { annotate } from "@/lib/logging/context";
 import { auditLog } from "@/lib/auth/audit";
 import { prisma } from "@/lib/db";
-import { ensureDbCompatibility } from "@/lib/db-compat";
 import { checkAuthSurfaceRateLimit, rateLimitHeaders } from "@/lib/rate-limit";
 import { finishLogin } from "@/lib/auth/login-response";
 import {
@@ -59,8 +58,6 @@ export const POST = apiHandler(async (request: NextRequest) => {
     });
   }
 
-  await ensureDbCompatibility();
-
   const { data: body, error: jsonError } = await safeJson(request, {
     maxBytes: 16 * 1024,
   });

src/app/api/auth/mfa/webauthn/verify/__tests__/route.test.ts

@@ -14,10 +14,6 @@ vi.mock("@/lib/db", () => ({
   prisma: { user: { findUnique: vi.fn() } },
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/rate-limit", () => ({
   checkAuthSurfaceRateLimit: vi.fn(),
   rateLimitHeaders: vi.fn(() => ({})),

src/app/api/auth/mfa/webauthn/verify/options/route.ts

@@ -16,7 +16,6 @@ import { apiHandler } from "@/lib/api-handler";
 import { apiError, apiSuccess } from "@/lib/api-response";
 import { parseJsonBody } from "@/lib/api/body";
 import { annotate } from "@/lib/logging/context";
-import { ensureDbCompatibility } from "@/lib/db-compat";
 import { checkAuthSurfaceRateLimit, rateLimitHeaders } from "@/lib/rate-limit";
 import { loadActiveChallenge } from "@/lib/auth/mfa/challenge";
 import { createMfaAuthenticationOptions } from "@/lib/auth/mfa/webauthn";
@@ -37,8 +36,6 @@ export const POST = apiHandler(async (request: NextRequest) => {
     });
   }
 
-  await ensureDbCompatibility();
-
   const parsed = await parseJsonBody(request, mfaWebauthnLoginOptionsSchema, {
     maxBytes: 16 * 1024,
     message: "Invalid request",

src/app/api/auth/mfa/webauthn/verify/route.ts

@@ -25,7 +25,6 @@ import {
 import { annotate } from "@/lib/logging/context";
 import { auditLog } from "@/lib/auth/audit";
 import { prisma } from "@/lib/db";
-import { ensureDbCompatibility } from "@/lib/db-compat";
 import { checkAuthSurfaceRateLimit, rateLimitHeaders } from "@/lib/rate-limit";
 import { finishLogin } from "@/lib/auth/login-response";
 import {
@@ -57,8 +56,6 @@ export const POST = apiHandler(async (request: NextRequest) => {
     });
   }
 
-  await ensureDbCompatibility();
-
   const { data: body, error: jsonError } = await safeJson(request, {
     maxBytes: 64 * 1024,
   });

src/app/api/auth/native/token/__tests__/route.test.ts

@@ -12,10 +12,6 @@ vi.mock("@/lib/db", () => ({
   prisma: { user: { findUnique: vi.fn() } },
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/rate-limit", () => ({
   checkAuthSurfaceRateLimit: vi.fn(),
   rateLimitHeaders: vi.fn(() => ({})),

src/app/api/auth/native/token/route.ts

@@ -26,7 +26,6 @@ import { apiHandler } from "@/lib/api-handler";
 import { annotate } from "@/lib/logging/context";
 import { auditLog } from "@/lib/auth/audit";
 import { prisma } from "@/lib/db";
-import { ensureDbCompatibility } from "@/lib/db-compat";
 import { checkAuthSurfaceRateLimit, rateLimitHeaders } from "@/lib/rate-limit";
 import { isCookielessNativeCaller } from "@/lib/auth/native-client";
 import { isNativeClientRequest } from "@/lib/auth/issue-token";
@@ -74,8 +73,6 @@ export const POST = apiHandler(async (request: NextRequest) => {
     return invalidCode();
   }
 
-  await ensureDbCompatibility();
-
   // (3) Body — bounded, then the exact wire contract.
   const parsed = await parseJsonBody(request, nativeHandoffTokenSchema, {
     maxBytes: 16 * 1024,

src/app/api/auth/oidc/native/token/__tests__/route.test.ts

@@ -9,10 +9,6 @@ vi.mock("@/lib/db", () => ({
   prisma: { user: { findUnique: vi.fn() } },
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/rate-limit", () => ({
   checkAuthSurfaceRateLimit: vi.fn(),
   rateLimitHeaders: vi.fn(() => ({})),

src/app/api/auth/oidc/native/token/route.ts

@@ -29,7 +29,6 @@ import { apiHandler } from "@/lib/api-handler";
 import { annotate } from "@/lib/logging/context";
 import { auditLog } from "@/lib/auth/audit";
 import { prisma } from "@/lib/db";
-import { ensureDbCompatibility } from "@/lib/db-compat";
 import { checkAuthSurfaceRateLimit, rateLimitHeaders } from "@/lib/rate-limit";
 import { isCookielessNativeCaller } from "@/lib/auth/native-client";
 import { isNativeClientRequest } from "@/lib/auth/issue-token";
@@ -80,8 +79,6 @@ export const POST = apiHandler(async (request: NextRequest) => {
     return invalidCode();
   }
 
-  await ensureDbCompatibility();
-
   // (3) Body — bounded, then the exact wire contract.
   const parsed = await parseJsonBody(request, oidcNativeTokenSchema, {
     maxBytes: 16 * 1024,

src/app/api/auth/passkey/login-verify/__tests__/native-token.test.ts

@@ -37,10 +37,6 @@ vi.mock("@/lib/rate-limit", () => ({
   checkAuthSurfaceRateLimit: vi.fn(),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/auth/hmac", () => ({
   hashToken: vi.fn((raw: string) => `hashed:${raw}`),
 }));

src/app/api/auth/passkey/login-verify/__tests__/oidc-only.test.ts

@@ -35,10 +35,6 @@ vi.mock("@/lib/rate-limit", () => ({
   checkAuthSurfaceRateLimit: vi.fn(),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/auth/hmac", () => ({
   hashToken: vi.fn((raw: string) => `hashed:${raw}`),
 }));

src/app/api/auth/passkey/login-verify/__tests__/refusals.test.ts

@@ -31,10 +31,6 @@ vi.mock("@/lib/rate-limit", () => ({
   checkAuthSurfaceRateLimit: vi.fn(),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
 vi.mock("next/headers", () => ({

src/app/api/auth/passkey/login-verify/route.ts

@@ -9,7 +9,6 @@ import { recordSignInDevice } from "@/lib/auth/login-alert";
 import { auditLog } from "@/lib/auth/audit";
 import { apiSuccess, apiError, safeJson } from "@/lib/api-response";
 import { prisma } from "@/lib/db";
-import { ensureDbCompatibility } from "@/lib/db-compat";
 import { checkAuthSurfaceRateLimit } from "@/lib/rate-limit";
 import { NextRequest } from "next/server";
 import { apiHandler } from "@/lib/api-handler";
@@ -71,8 +70,6 @@ export const POST = apiHandler(async (request: NextRequest) => {
     });
   }
 
-  await ensureDbCompatibility();
-
   // v1.4.43 — tighter shared bucket on trust-chain misconfig.
   const rl = await checkAuthSurfaceRateLimit(
     request,

src/app/api/auth/password/__tests__/route.test.ts

@@ -63,9 +63,6 @@ vi.mock("@/lib/auth/hibp", () => ({
 }));
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/auth/register/__tests__/route.test.ts

@@ -72,9 +72,6 @@ vi.mock("@/lib/tz/resolver", () => ({
   resolveServerDefaultTimezone: vi.fn().mockResolvedValue("Europe/Berlin"),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),

src/app/api/auth/register/route.ts

@@ -12,7 +12,6 @@ import { auditLog } from "@/lib/auth/audit";
 import { apiSuccess, apiError } from "@/lib/api-response";
 import { parseJsonBody } from "@/lib/api/body";
 import { checkAuthSurfaceRateLimit, rateLimitHeaders } from "@/lib/rate-limit";
-import { ensureDbCompatibility } from "@/lib/db-compat";
 import { NextRequest, NextResponse } from "next/server";
 import { apiHandler } from "@/lib/api-handler";
 import { annotate } from "@/lib/logging/context";
@@ -79,8 +78,6 @@ export const POST = apiHandler(async (request: NextRequest) => {
     );
   }
 
-  await ensureDbCompatibility();
-
   const userCount = await prisma.user.count();
 
   // Check if registration is enabled.

src/app/api/biomarkers/[id]/__tests__/delete-record-auth.test.ts

@@ -33,9 +33,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("@/lib/cache/invalidate", () => ({
   invalidateUserHealthScore: vi.fn(),
 }));

src/app/api/biomarkers/[id]/__tests__/route.test.ts

@@ -32,10 +32,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/labs/biomarker-store", () => ({
   encryptContextToBytes: vi.fn(() => new Uint8Array([1])),
   decryptContextFromBytes: vi.fn(() => "ctx"),

src/app/api/biomarkers/__tests__/error-contract.test.ts

@@ -31,9 +31,6 @@ vi.mock("@/lib/labs/biomarker-store", () => ({
   encryptContextToBytes: vi.fn(),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/c/[token]/unlock/__tests__/route.test.ts

@@ -37,10 +37,6 @@ vi.mock("@/lib/rate-limit", () => ({
   checkAuthSurfaceRateLimit: vi.fn(),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 import { POST } from "../route";
 import { resolveShareGateState } from "@/lib/clinician-share/resolve-share-token";
 import { verifyPassphrase } from "@/lib/clinician-share/passphrase";

src/app/api/coach/plans/__tests__/route.test.ts

@@ -54,10 +54,6 @@ vi.mock("@/lib/logging/transports", () => ({
   emitIfSampled: vi.fn(),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/logging/context", async (importOriginal) => {
   const actual = await importOriginal<typeof import("@/lib/logging/context")>();
   return { ...actual, annotate: vi.fn() };

src/app/api/coach/reminders/__tests__/route.test.ts

@@ -48,9 +48,6 @@ vi.mock("@/lib/ai/coach/bytes-codec", () => ({
   encryptToBytes: vi.fn((s: string) => new Uint8Array(Buffer.from(`enc:${s}`))),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("@/lib/logging/context", async (importOriginal) => {
   const actual = await importOriginal<typeof import("@/lib/logging/context")>();
   return { ...actual, annotate: vi.fn() };

src/app/api/coach/suggested-actions/__tests__/route.test.ts

@@ -48,9 +48,6 @@ vi.mock("@/lib/measurement-reminders/dto", () => ({
   toMeasurementReminderDto: vi.fn((r: { id: string }) => ({ id: r.id })),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("@/lib/logging/context", async (importOriginal) => {
   const actual = await importOriginal<typeof import("@/lib/logging/context")>();
   return { ...actual, annotate: vi.fn() };

src/app/api/consent/ai/__tests__/route.test.ts

@@ -36,10 +36,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/consent/ai/latest/__tests__/route.test.ts

@@ -40,10 +40,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/consent/ai/web/__tests__/route.test.ts

@@ -8,10 +8,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/custom-metrics/[id]/__tests__/route.test.ts

@@ -16,10 +16,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/custom-metrics/[id]/entries/__tests__/note-encryption.test.ts

@@ -37,10 +37,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/idempotency", () => ({
   withIdempotency: (fn: unknown) => fn,
 }));

src/app/api/custom-metrics/[id]/entries/__tests__/route.test.ts

@@ -32,10 +32,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/idempotency", () => ({
   withIdempotency: (fn: unknown) => fn,
 }));

src/app/api/custom-metrics/[id]/entries/__tests__/soft-delete-restore.test.ts

@@ -30,10 +30,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/cache/invalidate", () => ({
   invalidateUserCorrelationPatterns: vi.fn(),
 }));

src/app/api/custom-metrics/__tests__/route.test.ts

@@ -22,10 +22,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/idempotency", () => ({
   withIdempotency: (fn: unknown) => fn,
 }));

src/app/api/cycle/__tests__/external-id-floor.test.ts

@@ -64,9 +64,6 @@ vi.mock("@/lib/cycle/dto", async (importOriginal) => ({
   toMenstrualCycleDTO: vi.fn(() => ({ id: "cycle-1" })),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/cycle/calendar/__tests__/day-entries.test.ts

@@ -41,9 +41,6 @@ vi.mock("@/lib/rate-limit", () => ({
 }));
 vi.mock("@/lib/cycle/gate", () => ({ requireCycleEnabled: vi.fn() }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/cycle/calendar/__tests__/verdict-round-trip.test.ts

@@ -41,9 +41,6 @@ vi.mock("@/lib/rate-limit", () => ({
 }));
 vi.mock("@/lib/cycle/gate", () => ({ requireCycleEnabled: vi.fn() }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/cycle/day-logs/bulk/__tests__/route.test.ts

@@ -36,9 +36,6 @@ vi.mock("@/lib/cycle/day-log-write", () => ({
   upsertCycleDayLog: vi.fn(),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/cycle/insights/__tests__/route-locale.test.ts

@@ -67,10 +67,6 @@ vi.mock("@/lib/rate-limit", () => ({
   checkRateLimit: vi.fn(async () => ({ allowed: true })),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 const localeCookie = vi.fn<() => string | undefined>(() => undefined);
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),

src/app/api/cycle/symptoms/custom/__tests__/custom-crud.test.ts

@@ -27,9 +27,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("@/lib/cycle/gate", () => ({
   requireCycleEnabled: vi.fn(),
 }));

src/app/api/daily/digest/__tests__/route.test.ts

@@ -28,9 +28,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/daily/digest/dismiss/__tests__/route.test.ts

@@ -40,9 +40,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("@/lib/logging/context", async (importOriginal) => {
   const actual = await importOriginal<typeof import("@/lib/logging/context")>();
   return { ...actual, annotate: vi.fn() };

src/app/api/dashboard/chart-overlay-prefs/__tests__/route.test.ts

@@ -22,9 +22,6 @@ vi.mock("@/lib/cache/invalidate", () => ({
   invalidateUserDashboardWidgets: vi.fn(),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/dashboard/snapshot/__tests__/route.test.ts

@@ -26,9 +26,6 @@ vi.mock("@/lib/auth/session", () => ({
 vi.mock("@/lib/logging/transports", () => ({
   emitIfSampled: vi.fn(),
 }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/dashboard/summary/__tests__/module-gate.test.ts

@@ -18,9 +18,6 @@ import { describe, it, expect, vi, beforeEach } from "vitest";
 
 vi.mock("@/lib/auth/session", () => ({ getSession: vi.fn() }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 // The gate resolver runs for real; only its data sources are stubbed, so the
 // module state is driven the way production drives it.
 vi.mock("@/lib/db", () => ({

src/app/api/dashboard/summary/__tests__/route.test.ts

@@ -92,10 +92,6 @@ vi.mock("@/lib/analytics/mood-series", () => ({
   })),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/dashboard/widgets/__tests__/route.test.ts

@@ -58,10 +58,6 @@ vi.mock("@/lib/logging/transports", () => ({
   emitIfSampled: vi.fn(),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/logging/context", async (importOriginal) => {
   const actual = await importOriginal<typeof import("@/lib/logging/context")>();
   return {

src/app/api/devices/[id]/__tests__/route.test.ts

@@ -29,10 +29,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/devices/__tests__/route.test.ts

@@ -37,10 +37,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/rate-limit", () => ({
   checkRateLimit: vi.fn().mockResolvedValue({
     allowed: true,

src/app/api/documents/inbound/[id]/__tests__/route.test.ts

@@ -98,9 +98,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/documents/inbound/[id]/chat/__tests__/route.test.ts

@@ -72,9 +72,6 @@ vi.mock("@/lib/auth/audit", () => ({
 }));
 vi.mock("@/lib/auth/session", () => ({ getSession: vi.fn() }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/documents/inbound/[id]/extract/__tests__/route.test.ts

@@ -96,9 +96,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/documents/inbound/[id]/index/__tests__/route.test.ts

@@ -76,9 +76,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/documents/inbound/[id]/original/__tests__/route.test.ts

@@ -46,9 +46,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/documents/inbound/[id]/suggest/__tests__/route.test.ts

@@ -55,9 +55,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/documents/inbound/[id]/summary/__tests__/route.test.ts

@@ -68,9 +68,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/documents/inbound/[id]/thumbnail/__tests__/route.test.ts

@@ -48,9 +48,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/documents/inbound/__tests__/route.test.ts

@@ -133,9 +133,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/documents/inbound/layout/__tests__/route.test.ts

@@ -27,10 +27,6 @@ vi.mock("@/lib/logging/transports", () => ({
   emitIfSampled: vi.fn(),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/modules/gate", () => ({
   requireModuleEnabled: vi.fn(),
 }));

src/app/api/documents/inbound/reindex/__tests__/route.test.ts

@@ -37,9 +37,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/feature-flags/__tests__/route.test.ts

@@ -9,10 +9,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/fhir/__tests__/observation-series.test.ts

@@ -11,9 +11,6 @@ import { NextRequest } from "next/server";
 vi.mock("@/lib/auth/session", () => ({ getSession: vi.fn() }));
 vi.mock("@/lib/rate-limit", () => ({ checkRateLimit: vi.fn() }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("@/lib/modules/gate", () => ({
   requireModuleEnabled: vi.fn(),
   isModuleEnabled: vi.fn(),

src/app/api/fhir/__tests__/route.test.ts

@@ -13,9 +13,6 @@ import { NextRequest } from "next/server";
 vi.mock("@/lib/auth/session", () => ({ getSession: vi.fn() }));
 vi.mock("@/lib/rate-limit", () => ({ checkRateLimit: vi.fn() }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("@/lib/modules/gate", () => ({
   requireModuleEnabled: vi.fn(),
   isModuleEnabled: vi.fn(),

src/app/api/gamification/achievements/__tests__/hidden-redaction.test.ts

@@ -38,10 +38,6 @@ vi.mock("@/lib/modules/gate", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/gamification/achievements/__tests__/ios-format.test.ts

@@ -38,10 +38,6 @@ vi.mock("@/lib/modules/gate", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/gamification/achievements/__tests__/module-gate.test.ts

@@ -36,9 +36,6 @@ vi.mock("@/lib/db", () => ({
 
 vi.mock("@/lib/auth/session", () => ({ getSession: vi.fn() }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/gamification/achievements/__tests__/writes-nothing.test.ts

@@ -20,9 +20,6 @@ vi.mock("@/lib/db", () => ({
 
 vi.mock("@/lib/auth/session", () => ({ getSession: vi.fn() }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/illness/episodes/[id]/__tests__/body-site.test.ts

@@ -47,9 +47,6 @@ vi.mock("@/lib/idempotency", () => ({
       fn(...args),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/illness/episodes/[id]/day-logs/__tests__/route.test.ts

@@ -25,9 +25,6 @@ vi.mock("@/lib/illness/gate", () => ({
   requireIllnessEnabled: vi.fn(),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/illness/episodes/[id]/restore/__tests__/route.test.ts

@@ -31,9 +31,6 @@ vi.mock("@/lib/idempotency", () => ({
       fn(...args),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/import/apple-health-export/[jobId]/status/__tests__/route.test.ts

@@ -10,9 +10,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/import/apple-health-export/__tests__/route.test.ts

@@ -18,9 +18,6 @@ vi.mock("@/lib/logging/signal", async (importOriginal) => ({
   ...(await importOriginal<typeof import("@/lib/logging/signal")>()),
   emitSignal: vi.fn(),
 }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/import/health-connect-export/__tests__/route.test.ts

@@ -11,9 +11,6 @@ vi.mock("@/lib/auth/audit", () => ({
   auditLog: vi.fn().mockResolvedValue(undefined),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/ingest/medication/__tests__/route.test.ts

@@ -52,9 +52,6 @@ vi.mock("@/lib/cache/invalidate", () => ({
   invalidateUserMedications: vi.fn(),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/insights/biomarker-assessment/__tests__/route.test.ts

@@ -30,10 +30,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/insights/blood-pressure-status/__tests__/route.test.ts

@@ -26,10 +26,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/insights/cards/__tests__/route.test.ts

@@ -43,10 +43,6 @@ vi.mock("@/lib/auth/audit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/insights/chat/[id]/attachments/__tests__/route.test.ts

@@ -34,9 +34,6 @@ vi.mock("@/lib/ai/capabilities/gate", async () =>
     await import("@/__tests__/helpers/provider-order-mock")
   ).openCapabilityGateMock(),
 );
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/insights/chat/fenced/__tests__/route.test.ts

@@ -45,9 +45,6 @@ vi.mock("@/lib/auth/audit", () => ({
 }));
 vi.mock("@/lib/auth/session", () => ({ getSession: vi.fn() }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/insights/coach-read/__tests__/route.test.ts

@@ -45,10 +45,6 @@ vi.mock("@/lib/rate-limit", () => ({
   checkAnalyticsReadRateLimit: vi.fn(),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 const localeCookie = vi.fn<() => string | undefined>(() => undefined);
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),

src/app/api/insights/coach/facts/__tests__/route-memory.test.ts

@@ -63,10 +63,6 @@ vi.mock("@/lib/logging/transports", () => ({
   emitIfSampled: vi.fn(),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/logging/context", async (importOriginal) => {
   const actual = await importOriginal<typeof import("@/lib/logging/context")>();
   return {

src/app/api/insights/coach/facts/__tests__/route.test.ts

@@ -59,10 +59,6 @@ vi.mock("@/lib/logging/transports", () => ({
   emitIfSampled: vi.fn(),
 }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/logging/context", async (importOriginal) => {
   const actual = await importOriginal<typeof import("@/lib/logging/context")>();
   return {

src/app/api/insights/comprehensive/__tests__/route.test.ts

@@ -66,10 +66,6 @@ vi.mock("@/lib/rate-limit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/insights/correlations/__tests__/route.test.ts

@@ -64,10 +64,6 @@ vi.mock("@/lib/rate-limit", () => ({
 
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
 
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
-
 vi.mock("@/lib/insights/correlation-patterns", () => ({
   PATTERN_FAMILIES: {
     discoveryRetrospective: "DISCOVERY_RETROSPECTIVE",

src/app/api/insights/derived/__tests__/route.test.ts

@@ -39,9 +39,6 @@ vi.mock("@/lib/rate-limit", () => ({
   }),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({

src/app/api/insights/derived/batch/__tests__/route.test.ts

@@ -23,9 +23,6 @@ vi.mock("@/lib/rate-limit", () => ({
   rateLimitHeaders: () => ({}),
 }));
 vi.mock("@/lib/logging/transports", () => ({ emitIfSampled: vi.fn() }));
-vi.mock("@/lib/db-compat", () => ({
-  ensureDbCompatibility: vi.fn().mockResolvedValue(undefined),
-}));
 vi.mock("next/headers", () => ({
   headers: vi.fn(async () => ({ get: () => null })),
   cookies: vi.fn(async () => ({