feat(server,contracts,web): dashboard library counts and engine runs triggeredBy/multi-status filters

- GET /dashboard: automation.library {entities, movies, series, seasons,
  episodes, assets} and automation.slotSatisfiedRate; home media overview
  shows the counts instead of placeholders.
- GET /engine/runs: `status` accepts comma-separated values; new
  `triggeredBy` filter (comma-separated) evaluated server-side by scanning
  batches and paging with the last inspected row's cursor (scan cap 2000).
- Task stream: source filter and the "active" tab (running,pending) are now
  one paginated server query.

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

apps/web/app/api/engine.ts

@@ -5,7 +5,10 @@ import { qk } from "~/lib/query-keys.ts";
 import { errorCode } from "./parse.ts";
 
 export type EngineRunFilters = {
+  /** 单值或逗号分隔多值(running,pending) */
   status?: string;
+  /** 触发来源,单值或逗号分隔多值(user,api_key) */
+  triggeredBy?: string;
   workflowName?: string;
   businessKind?: EngineBusinessKind;
   businessRefId?: string;
@@ -16,9 +19,10 @@ export type EngineRunFilters = {
 /** 终态:不能再 cancel */
 export const ENGINE_TERMINAL = new Set(["completed", "succeeded", "failed", "canceled"]);
 
-export function useEngineRuns(filters: EngineRunFilters, enabled = true) {
+export function useEngineRuns(filters: EngineRunFilters, enabled = true, refetchMs: number | false = false) {
   return useInfiniteQuery({
     enabled,
+    refetchInterval: refetchMs,
     queryKey: qk.list("engine", filters),
     initialPageParam: undefined as string | undefined,
     queryFn: ({ pageParam, signal }) =>