refactor(core): CORE-03 add typed resource scopes and cleanup adapters

refactor/baselines/resource-scope-validation.json

@@ -0,0 +1,692 @@
+{
+  "task": "CORE-03",
+  "date": "2026-09-11",
+  "node": "v24.21.0",
+  "parentCommit": "362c6169987bb32c120e81ea267eeaa3bd8f63b8",
+  "source": {
+    "packages/artplayer/src/lifecycle/scope.ts": "e2188e8544b27cf8c7ac149e7146af628a2d6166c82b719a247adef5d85be5db",
+    "packages/artplayer/src/lifecycle/resources.ts": "2ff9cb71035ac5694c92a6b01f7454890bd652ba4b7774e8973500de7f7d204c",
+    "test/resource-scope.test.js": "f1b5bfb3fd863bee9493a26152aad6d110d47a8fc1f369da7e94c57d0538a123",
+    "test/types/resource-scope.ts": "a8c056914e8529c871891ed672030248d359a19f8571a5ac5a5f18952ea5def0",
+    "test/browser/resource-scope.spec.js": "0196bd9943c1ce2f6560f87156cd0de47606579c1a736bd46d4943179a121d3f"
+  },
+  "ci": {
+    "command": "yarn ci:check",
+    "passed": 94,
+    "unit": 66,
+    "engineering": 4,
+    "baseline": 24,
+    "sourceTypes": 15,
+    "logSha256": "e4982bd5055665e0bb40dc41c2c1ba319a935bff22ef6565ad102c4403ce09b6"
+  },
+  "build": {
+    "commands": [
+      "yarn build artplayer",
+      "yarn build:i18n"
+    ],
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+    "logs": [
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+      }
+    ]
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+  "browser": {
+    "command": "yarn test:browser",
+    "candidateKind": "workspace-build",
+    "internalFixtureKind": "internal-source-fixture",
+    "stats": {
+      "startTime": "2026-09-10T16:19:36.559Z",
+      "duration": 28138.681,
+      "expected": 78,
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+        "version": "153.0.8010.12",
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+        "pageErrors": [],
+        "controlledConsole": [
+          "Failed to load resource: net::ERR_FILE_NOT_FOUND"
+        ],
+        "controlledFailedRequests": [
+          {
+            "url": "http://127.0.0.1:8084/test/pattern.mp4",
+            "resourceType": "fetch",
+            "failure": {
+              "errorText": "net::ERR_ABORTED"
+            }
+          },
+          {
+            "url": "blob:http://127.0.0.1:8084/bb671d68-fcc1-4374-ac45-06ea586b13fd",
+            "resourceType": "fetch",
+            "failure": {
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+        "controlledFailedRequests": []
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+          "sha256": "032ba327c57b8d94d005558c64bc153dfb2e1d6fcb80cf50adca0ae5cdd7f471"
+        },
+        "pageErrors": [],
+        "controlledConsole": [
+          "Failed to load resource"
+        ],
+        "controlledFailedRequests": [
+          {
+            "url": "http://127.0.0.1:8084/test/pattern.mp4",
+            "resourceType": "fetch",
+            "failure": {
+              "errorText": "Load request cancelled"
+            }
+          },
+          {
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+            "failure": null
+          }
+        ]
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+    ],
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+      },
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+        "engine": "chromium",
+        "status": "passed",
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+      },
+      {
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+        "title": "candidate rejects NaN and can recover after an invalid update",
+        "engine": "chromium",
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+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "candidate releases only its listeners and DOM across multiple instances and early destruction",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "candidate ignores pending metadata initialization after immediate destroy",
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+        "status": "passed",
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+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "candidate deduplicates stylesheet injection while the document is loading",
+        "engine": "chromium",
+        "status": "passed",
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+      },
+      {
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+        "status": "passed",
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+      },
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+        "title": "candidate clears titles on blank chapters, zero hover and replacement",
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+      {
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+        "title": "candidate rejects NaN and can recover after an invalid update",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
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+        "title": "candidate releases only its listeners and DOM across multiple instances and early destruction",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "candidate ignores pending metadata initialization after immediate destroy",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "candidate deduplicates stylesheet injection while the document is loading",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "published-only observations: blank title, NaN and once-only metadata are historical defects",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "candidate clears titles on blank chapters, zero hover and replacement",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "candidate rejects NaN and can recover after an invalid update",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "candidate releases only its listeners and DOM across multiple instances and early destruction",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "candidate ignores pending metadata initialization after immediate destroy",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "candidate deduplicates stylesheet injection while the document is loading",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "factory, registration, input normalization and safe title text",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "progress bars, real hover, title edges and boundary seek",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "sync update, Infinity, object identity, empty lists and invalid data",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "explicit source update and core-owned destruction",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "factory, registration, input normalization and safe title text",
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+        "status": "passed",
+        "retry": 0
+      },
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+        "title": "progress bars, real hover, title edges and boundary seek",
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+      },
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+        "title": "progress bars, real hover, title edges and boundary seek",
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+        "title": "sync update, Infinity, object identity, empty lists and invalid data",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
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+        "status": "passed",
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+      },
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+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
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+        "file": "chapter.spec.js",
+        "title": "progress bars, real hover, title edges and boundary seek",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "sync update, Infinity, object identity, empty lists and invalid data",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
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+        "title": "explicit source update and core-owned destruction",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "factory, registration, input normalization and safe title text",
+        "engine": "firefox",
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+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "sync update, Infinity, object identity, empty lists and invalid data",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "explicit source update and core-owned destruction",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "factory, registration, input normalization and safe title text",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "progress bars, real hover, title edges and boundary seek",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
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+        "file": "chapter.spec.js",
+        "title": "sync update, Infinity, object identity, empty lists and invalid data",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "chapter.spec.js",
+        "title": "explicit source update and core-owned destruction",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "emitter.spec.js",
+        "title": "published: emitter event names and once across nested dispatch",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "emitter.spec.js",
+        "title": "candidate: emitter event names and once across nested dispatch",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
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+      {
+        "file": "emitter.spec.js",
+        "title": "published: emitter event names and once across nested dispatch",
+        "engine": "firefox",
+        "status": "passed",
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+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "emitter.spec.js",
+        "title": "published: emitter event names and once across nested dispatch",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "emitter.spec.js",
+        "title": "candidate: emitter event names and once across nested dispatch",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "published: real playback, pause, seek, switch and destroy",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "candidate: real playback, pause, seek, switch and destroy",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "controlled HTTP media failure emits a real video error",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "Range, media identity and docs candidate routes",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "published: real playback, pause, seek, switch and destroy",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "candidate: real playback, pause, seek, switch and destroy",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "controlled HTTP media failure emits a real video error",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "Range, media identity and docs candidate routes",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "published: real playback, pause, seek, switch and destroy",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "candidate: real playback, pause, seek, switch and destroy",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "controlled HTTP media failure emits a real video error",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "playback.spec.js",
+        "title": "Range, media identity and docs candidate routes",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "resource-scope.spec.js",
+        "title": "internal resource scope: native DOM, RAF, timer, fetch abort and URL release",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "resource-scope.spec.js",
+        "title": "internal resource scope: native DOM, RAF, timer, fetch abort and URL release",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "resource-scope.spec.js",
+        "title": "internal resource scope: native DOM, RAF, timer, fetch abort and URL release",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "published: subtitle object URL contains real VTT data",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "published: download starts and removes its temporary anchor",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "candidate: subtitle object URL contains real VTT data",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "candidate: download starts and removes its temporary anchor",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "candidate download releases the anchor even when click fails",
+        "engine": "chromium",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "published: subtitle object URL contains real VTT data",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "published: download starts and removes its temporary anchor",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "candidate: subtitle object URL contains real VTT data",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "candidate: download starts and removes its temporary anchor",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "candidate download releases the anchor even when click fails",
+        "engine": "firefox",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "published: subtitle object URL contains real VTT data",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "published: download starts and removes its temporary anchor",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "candidate: subtitle object URL contains real VTT data",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "candidate: download starts and removes its temporary anchor",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      },
+      {
+        "file": "utils.spec.js",
+        "title": "candidate download releases the anchor even when click fails",
+        "engine": "webkit",
+        "status": "passed",
+        "retry": 0
+      }
+    ]
+  },
+  "firstFailure": {
+    "stats": {
+      "startTime": "2026-09-10T16:15:26.658Z",
+      "duration": 33097.064,
+      "expected": 77,
+      "skipped": 0,
+      "unexpected": 1,
+      "flaky": 0
+    },
+    "engine": "firefox",
+    "assertion": "revokedRejected expected true, received false using an already decoded image",
+    "resolution": "Replace image decoding with fresh fetch before and after revocation; assert exact TypeError. Also abort an in-flight native fetch.",
+    "reportSha256": "8e2bbafe70e81957f37501901957598b3a88d4e5f272dcdaaedb56839f59118a"
+  },
+  "limits": [
+    "No player constructor/destroy integration until CORE-04",
+    "No package install rerun for this currently unreferenced internal module",
+    "No remote CI, device or SDK validation in this task"
+  ]
+}

refactor/changes/2026-09-11-CORE-03-resource-scope.md

@@ -0,0 +1,47 @@
+# CORE-03：内部资源作用域
+
+## 结构与契约
+
+新增核心 lifecycle/scope.ts 与 resources.ts：前者管理同步清理、父子作用域及异常汇总；
+后者封装 DOM 监听、定时器、RAF、AbortController 与自有 Blob URL。没有新依赖，
+没有把内部能力导出到 Artplayer/utils 或要求旧插件依赖它。
+
+实例可持有长期 scope，切源、字幕请求等单次操作使用 child。子作用域结束会脱离父登记，
+不会释放兄弟操作。清理先关闭作用域，再逆序释放；释放登记在调用前移除，重复和重入安全。
+单项失败不中断其他清理，最后统一抛出 ResourceCleanupError 并保留原始错误。
+显式 release 的错误直接传播，该登记仍只消费一次；后续所有者需在生命周期边界处理。
+
+Cleanup 的返回类型为 undefined，严格拒绝 async/Promise 清理，避免同步 destroy 丢失异步失败。
+异步媒体/SDK 关闭将由对应包明确等待，不伪装成同步回收。Emitter 订阅用独立 callback 加入
+scope，并通过原 off API 释放；实例和操作各自只清理拥有的资源。
+
+监听保留函数/对象接收者、固定 capture、处理 once 重入和外部 abort；计时器/RAF 完成后脱离
+登记，取消后即使已排队的回调被调用也不会工作。缺少 AbortController 时返回 undefined，
+请求所有者必须继续防止过期回调。Blob URL 只释放本 helper 创建的 URL，不接管用户传入 URL。
+
+对应 API-04/05/07/10：这是内部边界建立，不改变现有公开行为。CORE-04 才接入播放器的
+构造/销毁；当前 Events、历史 timer/request 尚未迁移，BASE-LIFE-04/05 与 BASE-PERF-01
+继续开放，不能把本任务的 scope 测试写成播放器泄漏已修复。
+
+## 验证与维护
+
+- test:unit 加入 resource-scope.test.js，共九项资源测试：异常汇总、重入、late add、
+  子作用域脱离、独立释放失败、订阅归属、受控 timer、已排队 RAF、DOM/abort/URL 与能力缺失。
+- test/types/resource-scope.ts 含四个必须拒绝的类型用例；全部严格源类型和消费者检查通过。
+- yarn ci:check：66 项单元、4 项工程、24 项冻结基线，共 94 项通过，无跳过。
+- 三浏览器 78 项通过；其中 3 项通过明确标注的 es2015 内部源码 fixture 验证原生 DOM、
+  RAF、timer、进行中的 fetch 取消和 Blob URL 撤销。其余为既有发布/工作区播放与插件回归。
+  源码 fixture 不冒充安装 tarball；内部代码尚未由公开入口引用。
+- 负向控制只允许本 case 的精确 URL、fetch 类型及已观察的引擎错误；其他网络错误不被忽略。
+- yarn build artplayer 与 yarn build:i18n 通过，生成产物无 Git 差异。本次未重复执行安装打包；
+  没有把上一任务的打包证据冒充本次新执行。
+
+首次浏览器运行 77 通过、Firefox 1 失败：撤销后的 URL 仍能复用已解码图片，说明图片缓存
+不是 URL 可用性的可靠判断。测试改为撤销前读出内容、撤销后 fresh fetch 精确 TypeError；
+同时验证进行中的 fetch 返回 AbortError。没有修改生产实现去迎合缓存，也没有重试或跳过。
+最初 Node RAF mock 误用了不存在的方法创建选项，已改为显式安装并恢复测试全局；生产不打补丁。
+执行指纹、首次失败摘要和最终状态见 [验证报告](../baselines/resource-scope-validation.json)。
+
+[核心架构](../../packages/artplayer/ARCHITECTURE.md) 维护所有权、错误协议、内部/公开边界与修改入口。
+下一项 CORE-04 需接入实例登记、处理构造失败/重复销毁并补真实播放器回归，再按各任务迁移
+具体操作资源。本任务独立提交；回退提交即可恢复文件、脚本和文档。无推送、版本变更或发布。

refactor/plan.md

@@ -4,7 +4,7 @@
 
 基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 214 项，范围 22 个包及工作区/示例。
 
-状态：todo 176 / doing 0 / blocked 0 / done 38 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
+状态：todo 175 / doing 0 / blocked 0 / done 39 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
 
 前置依赖是启动条件；验收是完成条件。任务可以继续拆分，但不能复用或悄悄删除旧 ID。
 
@@ -106,7 +106,7 @@
 | --- | --- | --- | --- | --- | --- | --- |
 | CORE-01 | artplayer<br>迁移纯工具并冻结导出 | ENG-03, ENG-04, ENG-06, PILOT-01 | utils/time/property/format/file/error/subtitle 的分批 TS 迁移 | Artplayer.utils 导出/参数/绑定保持，纯逻辑与类型测试通过 | M | done |
 | CORE-02 | artplayer<br>迁移内部 Emitter | CORE-01, BASE-03 | 带类型事件映射的原 Emitter 实现 | ctx、once/off、重入/异常和链式返回保持 | H | done |
-| CORE-03 | artplayer<br>建立内部资源作用域 | CORE-02 | 监听/订阅/定时器/RAF/请求/URL 的资源登记 | 实例与操作作用域分离，单项清理失败不阻断其他资源 | H | todo |
+| CORE-03 | artplayer<br>建立内部资源作用域 | CORE-02 | 监听/订阅/定时器/RAF/请求/URL 的资源登记 | 实例与操作作用域分离，单项清理失败不阻断其他资源 | H | done |
 | CORE-04 | artplayer<br>修复初始化与销毁生命周期 | CORE-03, ENG-05, BASE-07 | 构造失败回收、重复/重入 destroy、instances 修复 | 事件顺序、removeHtml、多实例和销毁中异步有真实回归；处理 baselines/lifecycle-coverage.md 的 BASE-LIFE-04/05 并增加候选正向回归；协调 BASE-PERF-01 销毁后定时器与回调归属 | H | todo |
 | CORE-05 | artplayer<br>区分输入配置和内部配置 | CORE-01, ENG-04 | Option/ResolvedOption、默认值与校验整理 | 配置合并/错误时机不变，JS 输入仍运行时校验 | M | todo |
 | CORE-06 | artplayer<br>建立内部媒体与宿主类型 | CORE-05 | 原生 video、canvas shim、UI host 类型 | 不更改公开 art.video 用法，不以 HTMLVideoElement 断言掩盖 shim | M | todo |
@@ -437,6 +437,7 @@
 - PILOT-01: [记录](changes/2026-09-10-PILOT-01-chapter.md) [记录](baselines/pilot-validation.json)
 - CORE-01: [记录](changes/2026-09-10-CORE-01-typed-utils.md) [记录](baselines/core-utils-validation.json)
 - CORE-02: [记录](changes/2026-09-11-CORE-02-typed-emitter.md) [记录](baselines/emitter-validation.json)
+- CORE-03: [记录](changes/2026-09-11-CORE-03-resource-scope.md) [记录](baselines/resource-scope-validation.json)
 - PKG-CHAPTER-01: [记录](changes/2026-09-10-PKG-CHAPTER-01-contract.md) [记录](baselines/chapter-contract.md)
 - PKG-CHAPTER-02: [记录](changes/2026-09-10-PKG-CHAPTER-02-tests.md) [记录](baselines/chapter-validation.json)
 - PKG-CHAPTER-03: [记录](changes/2026-09-10-PKG-CHAPTER-03-typescript-modules.md) [记录](baselines/chapter-migration-validation.json)

refactor/progress.md

@@ -1,5 +1,9 @@
 # 进度与证据
 
+## 当前实施：CORE-03 内部资源作用域完成
+
+新增两个核心 TS 文件，明确同步清理、实例/操作作用域、异常汇总及原生资源适配。94 项 Node/基线与 78 项三浏览器检查通过；首次 Firefox 图片缓存误判已保留并改为 fresh fetch 验证。见 [交付](changes/2026-09-11-CORE-03-resource-scope.md)。当前 214 项，39 完成、175 待办；核心十个 TS 文件、chapter 五个。作用域尚未接入播放器，旧生命周期风险仍开放；下一项 CORE-04 直接改构造与销毁。
+
 ## 当前实施：CORE-02 Emitter TS 迁移完成
 
 事件映射、payload/ctx 和链式类型已加入；九组普通契约保持，另修复原型事件名与嵌套快照重复 once。85 项 Node/基线、75 项三浏览器、三格式各 29 项 Emitter 检查通过；严格打包 27 项运行时/五组类型零诊断。见 [交付](changes/2026-09-11-CORE-02-typed-emitter.md)。当前 214 项，38 完成、176 待办。核心八个 TS 文件、chapter 五个 TS 文件；下一项 CORE-03 内部资源作用域。

refactor/tasks.json

@@ -789,11 +789,14 @@
       "dependsOn": [
         "CORE-02"
       ],
-      "status": "todo",
+      "status": "done",
       "risk": "H",
       "deliverable": "监听/订阅/定时器/RAF/请求/URL 的资源登记",
       "acceptance": "实例与操作作用域分离，单项清理失败不阻断其他资源",
-      "evidence": []
+      "evidence": [
+        "changes/2026-09-11-CORE-03-resource-scope.md",
+        "baselines/resource-scope-validation.json"
+      ]
     },
     {
       "id": "CORE-04",