fix(#182): fix Prisma enum import in job-steps tests

Fixed failing tests in job-steps.service.spec.ts and job-steps.controller.spec.ts
caused by undefined Prisma enum imports in the test environment.

Root cause: When importing JobStepPhase, JobStepType, and JobStepStatus from
@prisma/client in the test environment with mocked Prisma, the enums were
undefined, causing "Cannot read properties of undefined" errors.

Solution: Used vi.mock() with importOriginal to mock the @prisma/client module
and explicitly provide enum values while preserving other exports like PrismaClient.

Changes:
- Added vi.mock() for @prisma/client in both test files
- Defined all three enums (JobStepPhase, JobStepType, JobStepStatus) with their values
- Moved imports after the mock setup to ensure proper initialization

Test results: All 16 job-steps tests now passing (13 service + 3 controller)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

apps/api/src/job-steps/job-steps.controller.spec.ts

@@ -1,12 +1,41 @@
 import { describe, it, expect, beforeEach, vi } from "vitest";
 import { Test, TestingModule } from "@nestjs/testing";
+import { ExecutionContext } from "@nestjs/common";
+
+// Mock @prisma/client BEFORE importing other modules
+vi.mock("@prisma/client", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("@prisma/client")>();
+  return {
+    ...actual,
+    JobStepPhase: {
+      SETUP: "SETUP",
+      EXECUTION: "EXECUTION",
+      VALIDATION: "VALIDATION",
+      CLEANUP: "CLEANUP",
+    },
+    JobStepType: {
+      COMMAND: "COMMAND",
+      AI_ACTION: "AI_ACTION",
+      GATE: "GATE",
+      ARTIFACT: "ARTIFACT",
+    },
+    JobStepStatus: {
+      PENDING: "PENDING",
+      RUNNING: "RUNNING",
+      COMPLETED: "COMPLETED",
+      FAILED: "FAILED",
+      SKIPPED: "SKIPPED",
+    },
+  };
+});
+
+// Import after mocking
 import { JobStepsController } from "./job-steps.controller";
 import { JobStepsService } from "./job-steps.service";
 import { JobStepPhase, JobStepType, JobStepStatus } from "@prisma/client";
 import { AuthGuard } from "../auth/guards/auth.guard";
 import { WorkspaceGuard } from "../common/guards/workspace.guard";
 import { PermissionGuard } from "../common/guards/permission.guard";
-import { ExecutionContext } from "@nestjs/common";
 
 describe("JobStepsController", () => {
   let controller: JobStepsController;

apps/api/src/job-steps/job-steps.service.spec.ts

@@ -1,11 +1,42 @@
 import { describe, it, expect, beforeEach, vi } from "vitest";
 import { Test, TestingModule } from "@nestjs/testing";
-import { JobStepsService } from "./job-steps.service";
-import { PrismaService } from "../prisma/prisma.service";
-import { JobStepPhase, JobStepType, JobStepStatus } from "@prisma/client";
 import { NotFoundException } from "@nestjs/common";
 import { CreateStepDto, UpdateStepDto } from "./dto";
 
+// Mock @prisma/client BEFORE importing the service
+vi.mock("@prisma/client", async (importOriginal) => {
+  const actual = await importOriginal<typeof import("@prisma/client")>();
+  return {
+    ...actual,
+    JobStepPhase: {
+      SETUP: "SETUP",
+      EXECUTION: "EXECUTION",
+      VALIDATION: "VALIDATION",
+      CLEANUP: "CLEANUP",
+    },
+    JobStepType: {
+      COMMAND: "COMMAND",
+      AI_ACTION: "AI_ACTION",
+      GATE: "GATE",
+      ARTIFACT: "ARTIFACT",
+    },
+    JobStepStatus: {
+      PENDING: "PENDING",
+      RUNNING: "RUNNING",
+      COMPLETED: "COMPLETED",
+      FAILED: "FAILED",
+      SKIPPED: "SKIPPED",
+    },
+  };
+});
+
+// Import after mocking
+import { JobStepsService } from "./job-steps.service";
+import { PrismaService } from "../prisma/prisma.service";
+
+// Re-import the enums from the mock for use in tests
+import { JobStepPhase, JobStepType, JobStepStatus } from "@prisma/client";
+
 describe("JobStepsService", () => {
   let service: JobStepsService;
   let prisma: PrismaService;