fix(dsm): clean search header and remove catalogue page strip

[BigSimmo]

Summary

• Remove the redundant /dsm/search page header (back crumb, “Diagnosis catalogue”, “Diagnosis search”, description) so the page leads with the shared results ribbon under ModeNav.
• Restyle the DSM category filter trigger as a single full-width inset control with a plain tabular count (no same-tone pill that disappeared into the filter row).
• Move the Compare CTA into SearchResultsHeaderBand utilityControls when two+ diagnoses are selected, and set headingLevel={1} so the query remains the page heading.

Verification

• npx vitest run tests/dsm-search-empty-state.dom.test.tsx — 2 passed
• npm run test — 545 files / 5857 passed
• npm run lint — pass
• npm run typecheck — pass
• Phone check via npm run ensure at http://localhost:4461/dsm/search?q=Delirium — old page strip absent; ribbon shows 27 DSM diagnoses | Delirium; category filter shows visible 146 count

DSM search header on phone after fix

UI verification not run: full verify:ui skipped; focused phone owner check of /dsm/search was sufficient for this DSM-local chrome change.

Clinical Governance Preflight

Not applicable — UI chrome only on the DSM catalogue search page; no retrieval, ranking, answer generation, ingestion, document access, privacy, or production env changes.

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Review details

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Run ID: 3a65df00-bdf5-42bd-a127-3ddefc54e3ba

📥 Commits

Reviewing files that changed from the base of the PR and between 39973f0 and 3d9f7f0.

📒 Files selected for processing (3)

• docs/branch-review-ledger.md
• src/components/dsm/dsm-search-page.tsx
• tests/dsm-search-empty-state.dom.test.tsx

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[supabase]

This pull request has been ignored for the connected project sjrfecxgysukkwxsowpy because there are no changes detected in supabase directory. You can change this behaviour in Project Integrations Settings ↗︎.

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[github-actions]

CI triage

CI failed on this PR. Automated classification of the 2 failed job(s):

• Production UI (1) — needs investigation: inspect the failing step and uploaded diagnostics; rerun only after classifying the cause.
• PR required — main-side: the same job also failed on the latest completed main CI run.

Compared with main CI run #9458 (failure).

Classification is evidence routing, not permission to ignore a failure. Exact quarantined Playwright identities remain governed by the flake ledger.

[Copilot]

Pull request overview

Removes redundant DSM search chrome and consolidates controls into the shared results ribbon.

Changes:

• Promotes the search query ribbon to the page heading.
• Restyles the category filter and relocates the Compare action.
• Adds DOM regression coverage.

No high-confidence defects found. Static review only; full UI verification was not rerun.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/components/dsm/dsm-search-page.tsx	Simplifies header and filter/compare layout.
tests/dsm-search-empty-state.dom.test.tsx	Verifies removed chrome and heading hierarchy.
docs/branch-review-ledger.md	Records the change and reconciles ledger rows.

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