feat(server): W4-A integration endpoints and contract gaps

- POST /acquisition-plans: manual submit via download.plan -> download.submit
  (same authorization/audit/idempotency path as the agent), slotId or entityId
- read-only /media-assets, /asset-locations, /asset-unit-coverage, /path-bindings,
  /reconcile-runs, /server-mappings, /artifacts, GET /title-aliases/{id};
  unimplemented write endpoints removed from api.ts; registry test now checks both directions
- candidate evaluation upsert per (slot, source_release) + migration 0022 dedupe/unique index
- organization records expose downloadTaskId (+ list filter); inventory adds
  subscribed/candidateReasons; feed sources expose derived possibleGap
- GET /events?after=&limit= JSON replay page for API key callers (same sse_event table)
- preference tag revision history from audit_event; subscriptions/identities/aliases
  lists carry mediaEntityTitle; subscription q/mediaKind search; slot subscriptionId
  filter + currentAsset summary; policy preview samples carry title/reasons
- DecisionSummary, IdentityRevisionList, ReleaseIdentityResult, PolicyPreviewSummary exported from contracts

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

apps/web/app/components/library/slot-card.tsx

@@ -26,6 +26,10 @@ export function SlotCard({
   const hard = summarizeHard(slot.hardConditions, slot.fallback);
   const soft = summarizeSoft(slot.softPreferences);
   const upgrade = summarizeUpgrade(slot.upgradeThreshold);
+  // 服务端按 (Slot, 来源资源) 只保留最新一次评估;这里再按资源去重兜底(列表已按评估时间新→旧)
+  const latest = candidates.filter(
+    (c, i) => candidates.findIndex((x) => x.sourceReleaseId === c.sourceReleaseId) === i,
+  );
   return (
     <article className="min-w-0 rounded-xl border border-border/80 bg-foreground/[0.02] p-4">
       <header className="flex flex-wrap items-center gap-2">
@@ -70,12 +74,12 @@ export function SlotCard({
           <dd className="text-caption break-words text-foreground">{currentAsset ?? "无"}</dd>
         </div>
       </dl>
-      {candidates.length ? (
+      {latest.length ? (
         <div className="mt-3 border-t border-border/60 pt-3">
-          <p className="mb-2 text-meta text-muted-foreground">最近候选 · 为什么选 / 不选</p>
+          <p className="mb-2 text-meta text-muted-foreground">最近候选 · 为什么选 / 不选(每个资源显示最近一次评估)</p>
           <ul className="space-y-2">
-            {candidates.map((c) => (
-              <li key={`${c.sourceReleaseId}-${c.evaluatedAt}`} className="min-w-0">
+            {latest.map((c) => (
+              <li key={c.sourceReleaseId} className="min-w-0">
                 <div className="flex flex-wrap items-center gap-2">
                   <Tone v={CANDIDATE_DECISION[c.decision]} />
                   <span className="min-w-0 font-mono text-meta break-all text-foreground">{c.title}</span>
@@ -92,7 +96,7 @@ export function SlotCard({
                 {c.reasons.length ? (
                   <p className="mt-1 text-meta break-words text-muted-foreground">{c.reasons.join(";")}</p>
                 ) : null}
-                <p className="text-micro text-muted-foreground tabular-nums">{formatDateTime(c.evaluatedAt)}</p>
+                <p className="text-micro text-muted-foreground tabular-nums">评估于 {formatDateTime(c.evaluatedAt)}</p>
               </li>
             ))}
           </ul>