diff --git a/backend/src/__tests__/integration/chat.routes.test.ts b/backend/src/__tests__/integration/chat.routes.test.ts
index 64e71ecd..8f967663 100644
--- a/backend/src/__tests__/integration/chat.routes.test.ts
+++ b/backend/src/__tests__/integration/chat.routes.test.ts
@@ -41,7 +41,6 @@ function mockSupabase() {
 
 vi.mock("../../lib/supabase", () => ({
     createServerSupabase: vi.fn(() => mockSupabase()),
-    getUserIdFromRequest: vi.fn(async () => "u1"),
 }));
 
 // Authenticate every request as user "u1" without exercising the real Supabase
diff --git a/backend/src/__tests__/integration/documentsUpload.routes.test.ts b/backend/src/__tests__/integration/documentsUpload.routes.test.ts
index e7544cfb..faca4ab0 100644
--- a/backend/src/__tests__/integration/documentsUpload.routes.test.ts
+++ b/backend/src/__tests__/integration/documentsUpload.routes.test.ts
@@ -25,7 +25,6 @@ function mockSupabase() {
 
 vi.mock("../../lib/supabase", () => ({
     createServerSupabase: vi.fn(() => mockSupabase()),
-    getUserIdFromRequest: vi.fn(async () => "u1"),
 }));
 
 vi.mock("../../middleware/auth", () => ({
diff --git a/backend/src/__tests__/integration/projectChat.routes.test.ts b/backend/src/__tests__/integration/projectChat.routes.test.ts
index 8f6af783..e2fbd5e3 100644
--- a/backend/src/__tests__/integration/projectChat.routes.test.ts
+++ b/backend/src/__tests__/integration/projectChat.routes.test.ts
@@ -38,7 +38,6 @@ function mockSupabase() {
 
 vi.mock("../../lib/supabase", () => ({
     createServerSupabase: vi.fn(() => mockSupabase()),
-    getUserIdFromRequest: vi.fn(async () => "u1"),
 }));
 
 vi.mock("../../middleware/auth", () => ({
diff --git a/backend/src/__tests__/integration/projects.routes.test.ts b/backend/src/__tests__/integration/projects.routes.test.ts
index 408f24e2..d54eead2 100644
--- a/backend/src/__tests__/integration/projects.routes.test.ts
+++ b/backend/src/__tests__/integration/projects.routes.test.ts
@@ -68,7 +68,6 @@ function mockSupabase() {
 
 vi.mock("../../lib/supabase", () => ({
     createServerSupabase: vi.fn(() => mockSupabase()),
-    getUserIdFromRequest: vi.fn(async () => "u1"),
 }));
 
 vi.mock("../../middleware/auth", () => ({
diff --git a/backend/src/__tests__/integration/tabular.routes.test.ts b/backend/src/__tests__/integration/tabular.routes.test.ts
index c828148c..6ee9db10 100644
--- a/backend/src/__tests__/integration/tabular.routes.test.ts
+++ b/backend/src/__tests__/integration/tabular.routes.test.ts
@@ -81,7 +81,6 @@ function mockSupabase() {
 
 vi.mock("../../lib/supabase", () => ({
     createServerSupabase: vi.fn(() => mockSupabase()),
-    getUserIdFromRequest: vi.fn(async () => "u1"),
 }));
 
 vi.mock("../../middleware/auth", () => ({
diff --git a/backend/src/__tests__/integration/user.routes.test.ts b/backend/src/__tests__/integration/user.routes.test.ts
index d47b5bb5..2e043297 100644
--- a/backend/src/__tests__/integration/user.routes.test.ts
+++ b/backend/src/__tests__/integration/user.routes.test.ts
@@ -106,7 +106,6 @@ function mockSupabase() {
 
 vi.mock("../../lib/supabase", () => ({
     createServerSupabase: vi.fn(() => mockSupabase()),
-    getUserIdFromRequest: vi.fn(async () => "u1"),
 }));
 
 // requireAuth always authenticates u1. requireMfaIfEnrolled is a reconfigurable