feat(contracts,server,web): files G6–G8 fields and identify S-7 contract

- G6: FileRoot.pendingCount/pendingPartial for download roots (same rule as the
  unidentified filter, recursive, cached 5 min, invalidated by files.changed)
- G7: FileEntry.parsedHint from parseReleasePath (file + parent dirs); the web
  subline uses it and no longer parses names itself
- G8: FileIdentifyCandidate.posterUrl (TMDB poster_path via adapter and
  catalog.lookup, local entities from metadata.posterPath); thumbnails in the
  identify panel
- S-7 contract: FilesIdentifyResult.remoteTaskId/remotePending,
  MediaServerInventory.partial, EventType identify.completed with
  IdentifyCompletedPayload; identify panel (useIdentifyLive) and organize wizard
  merge remote results by root + path, buffering events that beat the response

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

packages/contracts/src/events.ts

@@ -2,6 +2,7 @@ import { z } from "zod";
 import { AgentRunStatus, DecisionKind, DecisionStatus, Severity } from "./agent.ts";
 import { Id, NonNegInt, Timestamp } from "./common.ts";
 import { DownloadStatus, PauseReason, TaskKind, TaskStatus } from "./execution.ts";
+import { IdentifyCompletedPayload } from "./files.ts";
 import { EvidenceLevel } from "./identity.ts";
 import { OrganizationStatus } from "./organization.ts";
 import { FeedDuePayload, FeedGapSuspectedPayload, FeedHealth, ReleaseObservedPayload } from "./sources.ts";
@@ -56,6 +57,8 @@ export const EventType = {
 
   decisionCreated: "decision.created",
   decisionUpdated: "decision.updated",
+
+  identifyCompleted: "identify.completed",
 } as const;
 export type EventType = (typeof EventType)[keyof typeof EventType];
 
@@ -191,6 +194,7 @@ export const EVENT_PAYLOADS = {
   "release.resolved": ReleaseResolvedPayload,
   "decision.created": DecisionCreatedPayload,
   "decision.updated": DecisionUpdatedPayload,
+  "identify.completed": IdentifyCompletedPayload,
 } as const satisfies Record<EventType, z.ZodType>;
 
 export type EventPayload<T extends EventType> = z.infer<(typeof EVENT_PAYLOADS)[T]>;