row 272: fix session fixture authority and initial chat render

BUILD-LOG.md

@@ -5397,3 +5397,5 @@ Row 299 (573, #1806, Gander, Filbert): before, the P10 band test timed a fault r
 2026-10-23 | Huey | Row 272 early static review follow-up, scrooge-272-early-read-huey-1. Before: a bad-session 404 erased sibling draft/recovery caches, malformed clear/cancel write receipts omitted the audit line, and another session's op key produced an ambiguous error. Draft after: purge only on named thread-level refusals, write one redacted malformed-receipt audit line, and identify key reuse without a write. New browser/HTTP/CLI tests authored, unrun under test hold; approved old-test hunks unchanged. Published 850b22680/round-1 manifest unchanged; follow-up is uncommitted, no acceptance claim.
 
 2026-10-23 | Huey | Row 272 round 2 on row 219 landing 5fdfd7275, after 295. Replayed round 1 and B1/N1/N2; seven conflicts resolved retaining both log histories, both test sets, 219 instance chooser and 295 owner-settings-only transport. Static comparison confirms old tests differ only by mos-1388 approved hunks. Sage3357/Mos1442 authorize bounded granted-user legacy fallback: only session.list access-refused and omitted-session route; no new session grants or owner routing. RED first under3358 on new file only: 1 expected legacy assertion failure, 3 guards pass, 3.504s, TMPDIR mktemp/no underscore, no compose network; slot returned as huey0035. Then implemented fallback and added timeout/bus/malformed guards plus isolated-copy mutant runner, all unrun afterward. Candidate commit/push precedes Sage's full gate by3354; no green claim.
+
+2026-10-23 | Huey | Row 272 round 3 per mos-1455 / sage-3435. Gate run 1 on b44332a93 RED: bus 891/0, business 231/0, CLI 940/1, plugins 110/1, webui 372/20; no mutants. Fixed only new CLI fixture role authority and three null-old render guards. Catching browser tests unchanged. manifest.r3 freezes the same 17 paths. Authorized pre-gate follow-up commit/push; no local tests, Node or queue writes; separate compactions dependency and Sage gate remain pending.

agents/huey/work/queue-272/BUILD.md

@@ -268,3 +268,44 @@ implied. Every touched test file still needs its whole-file run on Sage's slot,
 all touched suites and mutants. Any first-run red in launcher/creative/chat-browser
 returns to Mos via Sage before fixing. TMPDIR for gate runs comes only from mktemp -d,
 with no underscore; remove a matching compose default network only if created.
+
+
+## Round 3 preparation — gate run 1 (sage-3433)
+
+Sage ran candidate b44332a93 over refactor 1e4c1e6e9 with the pinned esbuild
+and MOSAIC_REQUIRE_EDITOR_BUILD=1. Gate RED: bus 891/0, business 231/0,
+CLI 940/1, plugins 110/1, webui 372/20. No mutants ran. Sage reproduced
+every failing file on b44332a93 alone, excluding overlay drift as the cause.
+Evidence: /mnt/storage/scratch/sage-r272/run-*.txt and split-*.txt.
+
+A: the new session CLI real-broker fixture omitted role authority. Verified
+checkBusiness requires withinRole and crossRole arrays on every role; added
+empty arrays to chief and assistant in that fixture only, as sage-3433 permits.
+No production authority or existing assertion changed. No local tests ran.
+
+B remains held for Mos under mos-1316/1317: initial bare-chat rendering compares
+old?.id with undefined id, then dereferences null old at the sessions/session/key
+initializers. Sage proposes old && old.id === id at all three sites. No B edit
+made pending the ruling. C (plugins harness compactions) is separately owned.
+
+Round 3 is not committed or pushed yet. The manifest path set remains the same
+17 paths; regenerate hashes when the authorized fixes are complete. Future
+launcher, creative and chat-browser runs use a TMPDIR allocated with
+mktemp -d /mnt/storage/scratch/tmp/<alnum>XXXXXX, because bwrap hides /tmp.
+Sage owns the next full gate. No tests, repo Node or queue writes here.
+
+
+### Round 3 candidate — mos-1455 / sage-3435
+
+Mos authorized B: all three initial render comparisons now use old && old.id === id,
+so an initial list route cannot dereference null old. A remains fixture-only.
+chat-browser.test.mjs and granted-user.test.mjs are byte-identical to b44332a93.
+No pre-existing assertion, authority validator or shared stub changed.
+
+Frozen manifest: manifest.r3.txt, 17 paths unchanged; SHA256 f98c5b7a884ed1e5951a584227ece16d403baf62199d405aaa1981d667e9e075.
+Parent candidate: b44332a9360504291dda3f81131c934b286f3226; base remains 5fdfd7275.
+Only session-cli.test.mjs and public/chat.js product hashes differ from round 2.
+This follow-up commit/push is authorized before the round 3 gate by sage-3435.
+No local tests, repo Node, mutants or queue writes ran. Gate remains RED until
+Sage reruns; plugins harness compactions is a separately owned dependency, and
+Mos declined an EXCEPT edit. Scrooge reviews this A/B delta; Sage posts round 3.

agents/huey/work/queue-272/manifest.r3.txt

@@ -0,0 +1,17 @@
+c21f1bd9af6841126baf19f5c9926ca23ba8e56b9af342373d8e4fefcee63632  packages/bus/src/broker.mjs
+3957243d59e50eaa2326b88b9205ed8e8b5d33bde2ce1ef62e68f20e56283568  packages/bus/tests/user-principal.test.mjs
+0a920131a981c2a1c9b73428a998966f446babae4dfe7d10eebdd6455571c0c9  packages/cli/README.md
+96c4f93628964b6ea10fb87d5cf936f9ecf2e7286aa20c0914ae8b0fb32c47e7  packages/cli/src/cli.mjs
+1a30048032f5bb64419ae9716a1692978bc1a137220a094d1900298aca6ba1d7  packages/cli/src/session.mjs
+58888b7731f8009d4c3f8be2caf4445f13dd8f534e1633f6e2720b259fcc3f92  packages/cli/src/thread.mjs
+a32bfeecd8589d41b298317954fae172dc936ee0559ec37990e84ed03bd38b07  packages/cli/tests/session-cli.test.mjs
+5e7e1ec169392ee3065f8f47d19732ebbe8bdd90f9193581425b956e66da6b73  packages/plugins/channel/cli/index.mjs
+aa086c365c4a6b0eaf84359a20ef2b30e723013ada6573fb0133163d5bf98a74  packages/plugins/channel/webui/index.mjs
+143bf601badf5cc2b25cb24368ace2ec34840abec858d272af239d6a4ddcdecb  packages/plugins/tests/channel.test.mjs
+6e743878e507be20d87ae10afdb01c105f6f4fab76d02410e065f3f20d18e597  packages/webui/src/chat-http.mjs
+7a5a18a9879fe7132f20a651c6927b007475571bd8fc45314eda9d6809288cea  packages/webui/src/chat.mjs
+88dd353f5df0603ed1fd43dd543ef7b45af93fee72b6bb6a03a26c068202fbd3  packages/webui/src/public/chat.css
+68696f41a7335db23c0786537de76ff1202142518647d3d7b89b6b6503baf4f1  packages/webui/src/public/chat.js
+1aa313f1602cf87a0ddac145bf58bbd7f1073c02009c65797e85418fdfdbd838  packages/webui/tests/chat-browser.test.mjs
+23de8678566f24a6c8bf0ca75b4550969015b06253586070e229f4eaf0bba2b4  packages/webui/tests/chat-sessions-access.test.mjs
+773538c0c6a26ab525aa30e588249ba4b4ee981129533db0348f2107da5dd1df  packages/webui/tests/chat.test.mjs

docs/SESSIONS.md

@@ -1580,3 +1580,5 @@ are never rewritten or removed; corrections are new entries.
 2026-10-23 | Huey (cabd45ca) | Row 272 sage-3145 draft preservation | Shared stash commit 07dc9d2f7 pinned to huey/row272-stash-keep; rebased draft committed locally by explicit Sage instruction before tests. Untested checkpoint only; claims/test/push CLEARs still pending.
 2026-10-23 | Huey (cabd45ca) | Row 272 Scrooge early static read on 850b22680 | B1 and N1/N2 follow-up drafted with new tests only; old assertions/shared stub unchanged. Static diff clean; no tests/commit/push pending CLEAR, round 1 remains frozen.
 2026-10-23 | Huey (cabd45ca) | Row 272 round 2, sage-3354/3357/3358/3361 | Rebased onto 5fdfd7275 on huey/row272-5fdfd7275, preserving 219/295 and approved old-test hunks; rev3510 in-progress. New fallback test ran RED first in Sage's slot: expected legacy failure, 3 guards pass; slot returned. Bounded fallback and extra guards/mutants prepared for Sage's full gate; no post-implementation run or green claim.
+
+2026-10-23 | Huey (cabd45ca) | Row 272 round 3, mos-1455 / sage-3435 | Added empty role authority arrays to new CLI fixture and guarded null old at all three chat render sites; browser tests byte-identical. Same 17-path manifest.r3, no local execution or queue writes. Follow-up candidate awaits Scrooge delta review and Sage gate; gate run 1 remains RED.

packages/cli/tests/session-cli.test.mjs

@@ -98,7 +98,7 @@ test('session CLI real broker: create/list/open keeps default and selectors isol
   const { join } = await import('node:path');
   const root = mkdtempSync(join(tmpdir(),'mosaic-session-cli-'));
   const store = new Store(root); t.after(()=>{store.close();rmSync(root,{recursive:true,force:true});});
-  const b = new Broker({store,businesses:{demo:{id:'demo',human:'jason',arbiters:{technical:'chief',delivery:'chief'},roles:{chief:{definition:'chief-of-staff'},assistant:{definition:'assistant'}},definitions:{assistant:{},'chief-of-staff':{}}}}});
+  const b = new Broker({store,businesses:{demo:{id:'demo',human:'jason',arbiters:{technical:'chief',delivery:'chief'},roles:{chief:{definition:'chief-of-staff',authority:{withinRole:[],crossRole:[]}},assistant:{definition:'assistant',authority:{withinRole:[],crossRole:[]}}},definitions:{assistant:{},'chief-of-staff':{}}}}});
   const cap = b.bindHuman({business:'demo',human:'jason',via:'cli',outsideAgent:true});
   const call = async (verb,args={}) => verb === 'plugins' ? {plugins:{channel:['cli']}} : b.request(cap,{verb,args});
   const project = (await call('project.create',{name:'work'})).id;

packages/webui/src/public/chat.js

@@ -144,7 +144,7 @@
       paint(); return;
     }
     const old = current;
-    current = { container, kind, id, canSend, projects: old?.projects ?? [], threads: old?.threads ?? [], repos: old?.repos ?? [], instances: old?.instances ?? [], instanceError: kind === 'project' ? 'Reading thread instances…' : '', error: '', refused: false, legacyDefault: false, sessions: old?.id === id ? old.sessions ?? [] : [], session: match[3] ?? (old?.id === id ? old.session : null), key: match[3] ? id + '/' + match[3] : old?.id === id ? old.key : id };
+    current = { container, kind, id, canSend, projects: old?.projects ?? [], threads: old?.threads ?? [], repos: old?.repos ?? [], instances: old?.instances ?? [], instanceError: kind === 'project' ? 'Reading thread instances…' : '', error: '', refused: false, legacyDefault: false, sessions: old && old.id === id ? old.sessions ?? [] : [], session: match[3] ?? (old && old.id === id ? old.session : null), key: match[3] ? id + '/' + match[3] : old && old.id === id ? old.key : id };
     if (navigated || !old) container.innerHTML = '<p class="chat-loading" role="status">Reading chat…</p>';
     try {
       // Resolve the explicit session before touching history/cursors. Missing selectors never