FE-1506: Show captures and completion while a panel elicitation runs

[lunelson]

🌟 What is the purpose of this PR?

The first human elicitation from the Petrinaut panel (FE-1503) needs the person at the panel to see what the interviewer has captured and whether the interview is complete while it runs. This branch surfaces capture and completion facts in the sweep results, keeps their presentation in the Petrinaut host, and states the attach contract between Petrinaut and the Brunch server.

Draft: opened so the stack is visible end to end. The description is completed when the branch is tied off.

🔗 Related links

• FE-1506 (internal; owning issue)

🚫 Blocked by

• Stacks on ln/fe-1504-panel; lands after it.

🔍 What does this change?

Capture and completion facts flow into sweep results; the Petrinaut host renders them; docs/specs/petrinaut-integration.md states the attach contract.

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

This PR:

• does not modify any publishable blocks or libraries, or modifications do not need publishing

📜 Does this require a change to the docs?

The changes in this PR:

• are internal and do not require a docs change

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Project	Deployment	Actions	Updated (UTC)
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[lunelson]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• FE-1506: Show captures and completion while a panel elicitation runs #9346 : 2 dependent PRs (#9347 , #9355 ) 👈 (View in Graphite)
• FE-1504: Run the process-model elicitor from the Petrinaut panel on one owned document #9345
• FE-1431: Build the plugin authoring surface #9337
• FE-1406: Audit the harness-teaching lineage and propose the fixed-key plugin contract (ADR-0007) #9327
• FE-1497: Build the controller read path and the SDCPN plugin package #9325
• FE-1404: Run condition 3 as the walking skeleton #9322
• FE-1403: Assemble and test the CPS interview guidance #9321
• FE-1402: Define and rehearse the elicitation completion contract #9320
• FE-1407: Catalogue elicitor failures that published measures miss #9319
• FE-1480: Project and realize a CPS model as a Petrinaut SDCPN #9313
• FE-1495: Prevent Brunch TypeScript contracts from drifting #9312
• FE-1494: Keep Brunch strategy and control records coherent #9311
• FE-1437: Move brunch-agent into hashintel/hash with its history #9274
• main

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[cursor]

PR Summary

Low Risk
Changes are demo-host presentation and richer sweep tool payloads for the UI; no auth or persistence semantics change beyond documented contract text.

Overview
Sweep results now carry the facts the panel needs to show during elicitation, and the local-storage demo decorates those streams so inline sweep cards read clearly.

On the server, an applied brunch_sweep response includes the full capture list (each with derived active / superseded / retracted status) and a fuller completion report, not just a trimmed cue. The transport package exports SWEEP_TOOL_NAME so the host can target sweep chunks reliably.

The demo app wraps DefaultChatTransport with createBrunchPanelTransport, which parses sweep outputs and merges title, detail, and items (formatted captures, provenance, and completion gaps) into tool-output chunks for the existing Petrinaut tool UI. A Vitest suite locks the three outcomes: no settled range, refused, and applied.

Docs are updated: petrinaut-integration.md adds the stable attach contract (chat stream, brunch_ask, x-brunch-principal) and clarifies same-origin /api/chat and UI-executed tools; ai-assistant.md mentions inline sweep cards for captures and open requirements. The baseline harness test asserts the same capture and completion shape on streamed message parts.

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