fix(ci): simplify test runner to plain bun test by fixing mock.module() leakage

- Add afterAll(() => { mock.restore() }) to 52 test files missing cleanup
- Rewrite create-tool-guard-hooks.test.ts to use spyOn instead of barrel mock
- Fix skill-mcp-manager OAuth tests with missing mockTokens/mockLogin definitions
- Fix start-work hook: show worktree active block on resume with existing worktree_path
- Extract createWorktreeActiveBlock to worktree-block.ts to avoid circular import
- Replace 80-line isolated test runner CI config with single `bun test` command

src/hooks/auto-update-checker/cache.test.ts

@@ -1,4 +1,4 @@
-import { afterEach, beforeEach, describe, expect, it, mock } from "bun:test"
+import { afterAll, afterEach, beforeEach, describe, expect, it, mock } from "bun:test"
 import { existsSync, mkdirSync, readFileSync, rmSync, writeFileSync } from "node:fs"
 import { join } from "node:path"
 
@@ -16,6 +16,10 @@ mock.module("../../shared/logger", () => ({
   log: () => {},
 }))
 
+afterAll(() => {
+  mock.restore()
+})
+
 function resetTestCache(): void {
   if (existsSync(TEST_CACHE_DIR)) {
     rmSync(TEST_CACHE_DIR, { recursive: true, force: true })

src/hooks/auto-update-checker/checker/sync-package-json.test.ts

@@ -1,4 +1,4 @@
-import { afterEach, beforeEach, describe, expect, it, mock } from "bun:test"
+import { afterAll, afterEach, beforeEach, describe, expect, it, mock } from "bun:test"
 import { existsSync, mkdirSync, readFileSync, rmSync, writeFileSync } from "node:fs"
 import { join } from "node:path"
 import type { PluginEntryInfo } from "./plugin-entry"
@@ -22,6 +22,10 @@ mock.module("../../../shared/logger", () => ({
   log: () => {},
 }))
 
+afterAll(() => {
+  mock.restore()
+})
+
 function resetTestCache(currentVersion = "3.10.0"): void {
   if (existsSync(TEST_CACHE_DIR)) {
     rmSync(TEST_CACHE_DIR, { recursive: true, force: true })

src/hooks/auto-update-checker/hook.test.ts

@@ -1,4 +1,4 @@
-import { afterEach, beforeEach, describe, expect, it, mock } from "bun:test"
+import { afterAll, afterEach, beforeEach, describe, expect, it, mock } from "bun:test"
 
 const mockShowConfigErrorsIfAny = mock(async () => {})
 const mockShowModelCacheWarningIfNeeded = mock(async () => {})
@@ -45,6 +45,10 @@ mock.module("../../shared/logger", () => ({
   log: () => {},
 }))
 
+afterAll(() => {
+  mock.restore()
+})
+
 type HookFactory = typeof import("./hook").createAutoUpdateCheckerHook
 
 async function importFreshHookFactory(): Promise<HookFactory> {

src/hooks/auto-update-checker/hook/background-update-check.test.ts

@@ -1,5 +1,5 @@
 import type { PluginInput } from "@opencode-ai/plugin"
-import { beforeEach, describe, expect, it, mock } from "bun:test"
+import { afterAll, beforeEach, describe, expect, it, mock } from "bun:test"
 
 type PluginEntry = {
   entry: string
@@ -51,6 +51,10 @@ mock.module("./update-toasts", () => ({
 }))
 mock.module("../../../shared/logger", () => ({ log: () => {} }))
 
+afterAll(() => {
+  mock.restore()
+})
+
 const modulePath = "./background-update-check?test"
 const { runBackgroundUpdateCheck } = await import(modulePath)
 

src/hooks/auto-update-checker/hook/workspace-resolution.test.ts

@@ -1,5 +1,5 @@
 import type { PluginInput } from "@opencode-ai/plugin"
-import { afterEach, beforeEach, describe, expect, it, mock } from "bun:test"
+import { afterAll, afterEach, beforeEach, describe, expect, it, mock } from "bun:test"
 import { existsSync, mkdirSync, rmSync, writeFileSync } from "node:fs"
 import { join } from "node:path"
 
@@ -101,6 +101,10 @@ mock.module("../../../shared/opencode-config-dir", () => ({
   }),
 }))
 
+afterAll(() => {
+  mock.restore()
+})
+
 const modulePath = "./background-update-check?test"
 const { runBackgroundUpdateCheck } = await import(modulePath)