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/atlas/compaction-agent-filter.test.ts

@@ -1,5 +1,5 @@
 declare const require: (name: string) => any
-const { afterEach, beforeEach, describe, expect, mock, test } = require("bun:test")
+const { afterEach, beforeEach, describe, expect, mock, test, afterAll } = require("bun:test")
 import { existsSync, mkdirSync, rmSync, writeFileSync } from "node:fs"
 import { tmpdir } from "node:os"
 import { join } from "node:path"
@@ -30,6 +30,8 @@ mock.module("../../shared/opencode-storage-detection", () => ({
   isSqliteBackend: () => false,
 }))
 
+afterAll(() => { mock.restore() })
+
 const { createAtlasHook } = await import("./index")
 
 describe("atlas hook compaction agent filtering", () => {

src/hooks/atlas/final-wave-approval-gate-regression.test.ts

@@ -1,4 +1,4 @@
-import { afterEach, beforeEach, describe, expect, mock, test } from "bun:test"
+import { afterEach, beforeEach, describe, expect, mock, test, afterAll } from "bun:test"
 import { randomUUID } from "node:crypto"
 import { existsSync, mkdirSync, rmSync, writeFileSync } from "node:fs"
 import { tmpdir } from "node:os"
@@ -29,6 +29,8 @@ mock.module("../../shared/opencode-storage-detection", () => ({
   isSqliteBackend: () => false,
 }))
 
+afterAll(() => { mock.restore() })
+
 const { createAtlasHook } = await import("./index")
 const { MESSAGE_STORAGE } = await import("../../features/hook-message-injector")
 

src/hooks/atlas/final-wave-approval-gate.test.ts

@@ -1,4 +1,4 @@
-import { afterEach, beforeEach, describe, expect, mock, test } from "bun:test"
+import { afterEach, beforeEach, describe, expect, mock, test, afterAll } from "bun:test"
 import { randomUUID } from "node:crypto"
 import { existsSync, mkdirSync, rmSync, writeFileSync } from "node:fs"
 import { tmpdir } from "node:os"
@@ -29,6 +29,8 @@ mock.module("../../shared/opencode-storage-detection", () => ({
   isSqliteBackend: () => false,
 }))
 
+afterAll(() => { mock.restore() })
+
 const { createAtlasHook } = await import("./index")
 const { MESSAGE_STORAGE } = await import("../../features/hook-message-injector")
 

src/hooks/atlas/index.test.ts

@@ -1,4 +1,4 @@
-import { describe, expect, test, beforeEach, afterEach, mock } from "bun:test"
+import { describe, expect, test, beforeEach, afterEach, mock, afterAll } from "bun:test"
 import { existsSync, mkdirSync, rmSync, writeFileSync } from "node:fs"
 import { join } from "node:path"
 import { tmpdir } from "node:os"
@@ -33,6 +33,8 @@ mock.module("../../shared/opencode-storage-detection", () => ({
   isSqliteBackend: () => false,
 }))
 
+afterAll(() => { mock.restore() })
+
 const { createAtlasHook } = await import("./index")
 const { createToolExecuteAfterHandler } = await import("./tool-execute-after")
 const { createToolExecuteBeforeHandler } = await import("./tool-execute-before")

src/hooks/atlas/session-last-agent.sqlite.test.ts

@@ -1,4 +1,4 @@
-const { describe, expect, mock, test } = require("bun:test")
+const { describe, expect, mock, test, afterAll } = require("bun:test")
 
 mock.module("../../shared/opencode-message-dir", () => ({
   getMessageDir: () => null,
@@ -12,6 +12,8 @@ mock.module("../../shared/normalize-sdk-response", () => ({
   normalizeSDKResponse: <TData>(response: { data?: TData }, fallback: TData): TData => response.data ?? fallback,
 }))
 
+afterAll(() => { mock.restore() })
+
 const { getLastAgentFromSession } = await import("./session-last-agent")
 
 function createMockClient(messages: Array<{ info?: { agent?: string } }>) {

src/hooks/atlas/tool-execute-after-background-launch.test.ts

@@ -1,6 +1,6 @@
 /// <reference types="bun-types" />
 
-import { afterEach, beforeEach, describe, expect, it, mock } from "bun:test"
+import { afterEach, beforeEach, describe, expect, it, mock, afterAll } from "bun:test"
 import { existsSync, mkdirSync, rmSync } from "node:fs"
 import { tmpdir } from "node:os"
 import { join } from "node:path"
@@ -23,6 +23,8 @@ mock.module("../../shared/git-worktree", () => ({
   formatFileChanges: mock(() => "No file changes"),
 }))
 
+afterAll(() => { mock.restore() })
+
 const { createToolExecuteAfterHandler } = await import("./tool-execute-after")
 
 describe("createToolExecuteAfterHandler background launch detection", () => {