feat(worker): IO Worker 分道(WK-1)

io worker 进程内按任务声明的 lane 分文件 / 网络 / 维护三条道,各自并发(缺省 2/4/1)、
各自排队;维护道在文件道或网络道有排队/运行时让路(连续 10 分钟放行一个),调度器内联的
清理/回填/保留期裁剪也走维护道。并发在 设置 → 自动化 → 高级 热生效,env 覆盖;旧
WORKER_CONCURRENCY 映射到网络道。运行状态页按道显示运行中/并发/排队。归属表写进
docs/runbook/dev.md,ci 与注册表逐项核对。

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/tasks/src/definitions.ts

@@ -33,6 +33,7 @@ const DB_RETRY = { maximumAttempts: 3, initialInterval: "1s", backoffCoefficient
 export const ingestFeed = defineTask({
   name: "ingestFeed",
   version: 1,
+  lane: "network",
   inputSchema: z.object({ feedSourceId: id }),
   retryPolicy: NETWORK_RETRY,
   handler: stub("ingestFeed"),
@@ -41,6 +42,7 @@ export const ingestFeed = defineTask({
 export const resolveObservation = defineTask({
   name: "resolveObservation",
   version: 1,
+  lane: "network",
   inputSchema: z.object({ observationId: id }),
   retryPolicy: NETWORK_RETRY,
   handler: stub("resolveObservation"),
@@ -49,6 +51,7 @@ export const resolveObservation = defineTask({
 export const evaluateAcquisition = defineTask({
   name: "evaluateAcquisition",
   version: 1,
+  lane: "network",
   inputSchema: z.object({
     subscriptionId: id.optional(),
     acquisitionSlotId: id.optional(),
@@ -61,6 +64,7 @@ export const evaluateAcquisition = defineTask({
 export const submitDownload = defineTask({
   name: "submitDownload",
   version: 1,
+  lane: "network",
   inputSchema: z.object({ acquisitionPlanId: id }),
   retryPolicy: NETWORK_RETRY,
   handler: stub("submitDownload"),
@@ -69,6 +73,7 @@ export const submitDownload = defineTask({
 export const verifyAndImport = defineTask({
   name: "verifyAndImport",
   version: 1,
+  lane: "file",
   inputSchema: z.object({ downloadTaskId: id }),
   retryPolicy: FILE_RETRY,
   handler: stub("verifyAndImport"),
@@ -77,6 +82,7 @@ export const verifyAndImport = defineTask({
 export const refreshMetadata = defineTask({
   name: "refreshMetadata",
   version: 1,
+  lane: "network",
   inputSchema: z.object({ mediaEntityId: id }),
   retryPolicy: NETWORK_RETRY,
   handler: stub("refreshMetadata"),
@@ -85,6 +91,7 @@ export const refreshMetadata = defineTask({
 export const reconcileLibrary = defineTask({
   name: "reconcileLibrary",
   version: 1,
+  lane: "maintenance",
   inputSchema: z.object({ libraryRootId: id.optional(), reconcileRunId: id.optional() }),
   retryPolicy: FILE_RETRY,
   handler: stub("reconcileLibrary"),
@@ -93,6 +100,7 @@ export const reconcileLibrary = defineTask({
 export const cleanupDownloadCache = defineTask({
   name: "cleanupDownloadCache",
   version: 1,
+  lane: "file",
   inputSchema: z.object({ downloaderInstanceId: id.optional() }),
   retryPolicy: FILE_RETRY,
   handler: stub("cleanupDownloadCache"),
@@ -101,6 +109,7 @@ export const cleanupDownloadCache = defineTask({
 export const resolveDecision = defineTask({
   name: "resolveDecision",
   version: 1,
+  lane: "agent",
   inputSchema: z.object({ decisionId: id }),
   retryPolicy: DB_RETRY,
   handler: stub("resolveDecision"),