fix(board): unwrap Hermes kanban task-detail envelope so the drawer renders

[thinmintdev]

Problem

The hal0 operator-board task drawer shows a blank / mis-populated detail view while the Hermes dashboard shows the same task in full. Reported against t_37a898aa:

Field	Hermes	hal0 (before)
status	done	triage (default)
assignee / priority / workspace / created-by	populated	blank / 0 / unassigned
description	full text	blank
events	kind + time + payload JSON	kind label only
worker log	2.3 KB of run output	"no worker log yet"
run history	state + dur + msg	@homelab only

Root cause

A wire-shape mismatch in the UI normaliser, not the proxy — hal0-api forwards /tasks/{id} verbatim (board.py), so both UIs read the same store.

The Hermes kanban plugin returns two shapes:

• GET /board → a flat task row per column
• GET /tasks/{id} → an envelope: {task, comments, events, attachments, links, runs} with snake_case item fields (created_at, payload, outcome, summary) and epoch-second timestamps

normaliseTask() read scalars off the top level, so everything under .task fell to its default (hence status → "triage") and only the top-level arrays survived — with the wrong per-item field names (created_at≠at, payload≠json, outcome≠state, summary≠msg). The worker-log hook only understood array / {entries}, never the {content} shape the plugin actually returns.

Fix (ui/src/api/hooks/useBoard.ts + task-drawer.jsx)

• normaliseTask — unwrap raw.task for scalars; pull comments/events/runs and links → deps off the envelope. Falls back to the flat row and to already-normalised camelCase objects (the optimistic-update path re-feeds them), so it's backward-compatible and idempotent.
• normaliseEvent / normaliseRun / normaliseComment + relTime / durLabel helpers remap the item fields (created_at → at as "20m ago", payload → json, outcome/status → state, started/ended → dur, summary → msg, workspace_path → workspace).
• useBoardTaskLog — accept {content: "<text>"} (split into per-line entries).
• task-drawer.jsx — read t.body (the normaliser never emitted t.desc).

Tests

• Added an e2e regression test that drives the drawer with the real envelope wire shape and asserts desc / event payload / run state / worker-log all render. The pre-existing fixtures encode the flat shape the plugin never emits for detail — which is why CI stayed green while production was blank.
• npm run typecheck ✅ · playwright test board-drawer-v3.spec.ts → 22 passed (all prior flat-fixture tests still green, proving no regression).

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