#160 — panel /roboco-logo.png "received null":
next/image optimizer fails for static public assets in Next.js
standalone mode. Added `unoptimized` to the sidebar logo Image so
it serves the static file directly (validated on panel rebuild).
#161 — QA/doc evidence pr_diff_summary empty:
A leaf dev branch's parent_branch_for is the cell-PM branch, which
is never pushed (only devs push their leaf branch). diff against a
non-existent origin/<parent> returned empty. Added
GitService._resolve_diff_base + _default_branch_ref + _ref_exists:
diff/list_changed_files fall back to the repo default branch
(origin/HEAD → master/main) when origin/<parent> is absent.
#162 — claim_doc_task BRANCH_MISMATCH loop:
The documenter's clone is separate from the dev's; the task branch
already existed (dev created it) so no checkout ran in the doc
workspace — roboco_docs_write / commit failed BRANCH_MISMATCH and
the doc looped. Fixes:
(a) new GitService.checkout_branch_in_agent_workspace; claim_doc_task
checks out the task branch into the doc clone (best-effort —
a checkout hiccup never fails the claim).
(b) BRANCH_MISMATCH remediate now lists all four role claim verbs
(i_will_work_on / i_will_plan / claim_doc_task / claim_review).
(d) give_me_work next-hint is role+status aware via _claim_verb_hint
(doc→claim_doc_task, qa→claim_review, pm→i_will_plan, else dev).
Facet (c) (i_am_blocked "Not Found" for doc) was only reachable via
the stuck-without-checkout path; primary fix removes it.
Smoke-11 reached dev→QA→doc (deepest ever) and validated the prior
6 fixes (panel flood gone, #158/#159/#157 confirmed). These three
clear the doc-phase blockers found in that run.
