refactor(danmuku): [PKG-DANMUKU-04] own scheduler and worker request lifecycle

refactor/risks.json

@@ -5106,7 +5106,9 @@
         "refactor/changes/2026-09-13-PKG-DANMUKU-02-browser-baseline.md",
         "refactor/baselines/danmuku-browser-validation.json",
         "refactor/changes/2026-09-13-PKG-DANMUKU-03-input.md",
-        "refactor/baselines/danmuku-input-validation.json"
+        "refactor/baselines/danmuku-input-validation.json",
+        "refactor/changes/2026-09-13-PKG-DANMUKU-04-scheduler.md",
+        "refactor/baselines/danmuku-scheduler-validation.json"
       ],
       "compatibleResolution": "Track and release exact subscription and timer ownership across settings, renderer and instances.",
       "closureCriteria": "Repeated lifecycle and pending settings actions leave no owned subscriptions, timers or late DOM writes."
@@ -5132,7 +5134,7 @@
       "id": "DANMUKU-ASYNC-01",
       "title": "Danmuku asynchronous input, worker replies and pending visibility have unverified failure and cancellation paths",
       "confirmation": "reproduced",
-      "status": "open",
+      "status": "resolved",
       "owners": [
         "PKG-DANMUKU-02",
         "PKG-DANMUKU-03",
@@ -5148,10 +5150,20 @@
         "refactor/changes/2026-09-13-PKG-DANMUKU-02-browser-baseline.md",
         "refactor/baselines/danmuku-browser-validation.json",
         "refactor/changes/2026-09-13-PKG-DANMUKU-03-input.md",
-        "refactor/baselines/danmuku-input-validation.json"
+        "refactor/baselines/danmuku-input-validation.json",
+        "refactor/changes/2026-09-13-PKG-DANMUKU-04-scheduler.md",
+        "refactor/baselines/danmuku-scheduler-validation.json"
       ],
       "compatibleResolution": "Reproduce load ordering, Bilibili rejection and late worker/visibility paths before defining operation ownership.",
-      "closureCriteria": "Failures settle, obsolete results cannot alter new queues or destroyed instances, and worker resources are released with browser evidence."
+      "closureCriteria": "Failures settle, obsolete results cannot alter new queues or destroyed instances, and worker resources are released with browser evidence.",
+      "resolutionEvidence": [
+        "refactor/changes/2026-09-13-PKG-DANMUKU-04-scheduler.md",
+        "refactor/baselines/danmuku-scheduler-validation.json",
+        "test/danmuku-scheduler.test.js",
+        "test/danmuku-worker-client.test.js",
+        "test/browser/danmuku-scheduler.spec.js"
+      ],
+      "resolutionRationale": "Task03 input/parser settlement and task04 worker/visibility ownership prevent stale continuation, including recovery reentry; final native matrices verify worker disposal. Settings/heatmap cleanup remains separately open."
     },
     {
       "id": "DANMUKU-HEATMAP-01",
@@ -5194,7 +5206,7 @@
       "id": "DANMUKU-TRACK-01",
       "title": "Native simultaneous fixed Danmuku comments can overlap with duplicate start loops and repeated Worker IDs",
       "confirmation": "reproduced",
-      "status": "open",
+      "status": "resolved",
       "owners": [
         "PKG-DANMUKU-04",
         "PKG-DANMUKU-05",
@@ -5204,10 +5216,42 @@
         "refactor/changes/2026-09-13-PKG-DANMUKU-02-browser-baseline.md",
         "refactor/baselines/danmuku-browser-validation.json",
         "test/browser/danmuku-baseline.spec.js",
-        "test/danmuku-failures.test.js"
+        "test/danmuku-failures.test.js",
+        "refactor/changes/2026-09-13-PKG-DANMUKU-04-scheduler.md",
+        "refactor/baselines/danmuku-scheduler-validation.json"
       ],
       "compatibleResolution": "Enforce one owned scheduler loop and request correlation before claiming simultaneous native anti-overlap stability; keep strict track geometry tests.",
-      "closureCriteria": "Deterministic duplicate-loop/worker regressions and repeated candidate native simultaneous-load geometry pass without extra nodes or stale state; a later passing old snapshot alone does not close the race."
+      "closureCriteria": "Deterministic duplicate-loop/worker regressions and repeated candidate native simultaneous-load geometry pass without extra nodes or stale state; a later passing old snapshot alone does not close the race.",
+      "resolutionEvidence": [
+        "refactor/changes/2026-09-13-PKG-DANMUKU-04-scheduler.md",
+        "refactor/baselines/danmuku-scheduler-validation.json",
+        "test/danmuku-scheduler.test.js",
+        "test/danmuku-worker-client.test.js",
+        "test/browser/danmuku-scheduler.spec.js"
+      ],
+      "resolutionRationale": "Single owned loop, correlated IDs and unchanged real geometry algorithm pass deterministic regressions, all native matrices and 60 additional repeated dense cases with strict geometry, request and node counts; broad long-load acceptance remains task07."
+    },
+    {
+      "id": "DANMUKU-INPUT-02",
+      "title": "Intermediate explicit-zero correction regressed accepted NaN timestamp fallback",
+      "confirmation": "reproduced",
+      "status": "resolved",
+      "owners": [
+        "PKG-DANMUKU-04"
+      ],
+      "evidence": [
+        "refactor/changes/2026-09-13-PKG-DANMUKU-04-scheduler.md",
+        "refactor/baselines/danmuku-scheduler-validation.json",
+        "test/danmuku-input.test.js"
+      ],
+      "compatibleResolution": "Preserve old NaN default currentTime+0.5, corrected explicit zero and old Infinity normalization without widening validation.",
+      "closureCriteria": "Frozen history and current candidate numeric comparisons pass, and actual native candidate renders NaN input.",
+      "resolutionEvidence": [
+        "refactor/changes/2026-09-13-PKG-DANMUKU-04-scheduler.md",
+        "refactor/baselines/danmuku-scheduler-validation.json",
+        "test/browser/danmuku-scheduler.spec.js"
+      ],
+      "resolutionRationale": "Historical source/main/legacy establish old behavior; source/main/legacy final input and native matrices confirm the one-condition correction. Task03 frozen evidence is preserved."
     }
   ]
 }