feat!: hide Coder Tasks behind the enable-ai-tasks flag (#28008)

coderd/coderdtest/coderdtest.go

@@ -1866,6 +1866,10 @@ func DeploymentValues(t testing.TB, mut ...func(*codersdk.DeploymentValues)) *co
 	opts := cfg.Options()
 	err := opts.SetDefaults()
 	require.NoError(t, err)
+	// Tasks ship disabled. Tests exercise the enabled behavior by default so
+	// the Tasks suite keeps running; tests for the disabled path opt out
+	// explicitly via the mutators.
+	cfg.EnableAITasks = true
 	for _, fn := range mut {
 		fn(cfg)
 	}

coderd/coderdtest/swagger_test.go

@@ -20,7 +20,13 @@ func TestEndpointsDocumented(t *testing.T) {
 	require.NoError(t, err, "can't parse swagger comments")
 	require.NotEmpty(t, swaggerComments, "swagger comments must be present")
 
-	_, _, api := coderdtest.NewWithAPI(t, nil)
+	// Coder Tasks has no swagger annotations because it is withdrawn from the
+	// product, so verify against a deployment where its routes are not
+	// registered.
+	values := coderdtest.DeploymentValues(t)
+	values.EnableAITasks = false
+
+	_, _, api := coderdtest.NewWithAPI(t, &coderdtest.Options{DeploymentValues: values})
 	coderdtest.VerifySwaggerDefinitions(t, api.APIHandler, swaggerComments, coderdtest.WithSwaggerRoutePrefix("/api/v2"))
 }