feat: DONE gate in update_job_status — reject if verify_result null or EMPTY without verify_only

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

__tests__/update-job-status-gate.test.ts

@@ -0,0 +1,39 @@
+import { describe, it, expect } from 'vitest'
+import { checkVerifyGate } from '../src/tools/update-job-status.js'
+
+describe('checkVerifyGate', () => {
+  it('rejects when verify_result is null — agent must verify first', () => {
+    const r = checkVerifyGate(null, false)
+    expect(r.allowed).toBe(false)
+    if (!r.allowed) expect(r.error).toMatch(/verify_task_against_plan/i)
+  })
+
+  it('rejects when verify_result is EMPTY and task is not verify_only', () => {
+    const r = checkVerifyGate('EMPTY', false)
+    expect(r.allowed).toBe(false)
+    if (!r.allowed) {
+      expect(r.error).toMatch(/EMPTY/i)
+      expect(r.error).toMatch(/verify_only/i)
+    }
+  })
+
+  it('allows when verify_result is EMPTY and task IS verify_only', () => {
+    const r = checkVerifyGate('EMPTY', true)
+    expect(r.allowed).toBe(true)
+  })
+
+  it('allows when verify_result is ALIGNED', () => {
+    const r = checkVerifyGate('ALIGNED', false)
+    expect(r.allowed).toBe(true)
+  })
+
+  it('allows when verify_result is PARTIAL', () => {
+    const r = checkVerifyGate('PARTIAL', false)
+    expect(r.allowed).toBe(true)
+  })
+
+  it('allows when verify_result is DIVERGENT', () => {
+    const r = checkVerifyGate('DIVERGENT', false)
+    expect(r.allowed).toBe(true)
+  })
+})