Search & Add invokes never reach the workspace — pane hangs at 'searching…', backend fully green

[mpstaton]

Context:

• Search-And-Add-Invokes-Never-Reach-The-Workspace

The 🔍 pane's mount-time invokes (connectors.inventory + auto-fired search.fire) never reach ws.ts — no reply, no server trace — while SearXNG, NATS search.fire, and every org-card verb work. Suspect window: the 2026-07-24 claim-protocol/queue-rail commits. Four next probes named in the issue file.

[mpstaton]

Two of the four probes shipped in ce51eb7: default client deadlines (120s normal / 660s crawl-shaped — silent freezes structurally impossible now) and server-side invoke_received/result_sent logging. Post-instrumentation repro: the full 🔍 path works after a workspace rebuild + fresh page (search.fire → 10 results, full palette), so the hang is intermittent and session-degradation-shaped. Next recurrence: grep workspace logs for invoke_received with the capability — presence/absence decides client-vs-server instantly. Remaining probes: transport enqueue/flush/claim tracing, zombie-pane promise check.