fix(dsm): stop the diagnosis page stating its criteria twice

[BigSimmo]

Summary

• The four cards above "Core diagnostic criteria" on /dsm/diagnoses/<slug> rendered criteria.slice(0, 4) — the same array the #criteria panel immediately below lists in full — so every diagnosis stated criterion A–D twice, the second time truncated to four lines by line-clamp-4. Both blocks read the same dsmCriteria(diagnosis) call.
• The row also rendered min(criteria.length, 4) cards. Only 86 of the 146 records carry four or more criteria and 12 carry exactly one, so it was a ragged one-to-four tiles rather than a stable strip; criterion-label coverage is A 146, B 134, C 117, D 85, so a "Criterion D" card existed for barely half the catalogue.
• Replaced it with an at-a-glance row that reports the shape of the record rather than its content: criteria count plus letter range, specifier count, differential count, and whether a severity specifier is supported. Each of those fields is populated on all 146 records, so the row is now always exactly four tiles and genuinely 2×2 on phones / 1×4 at xl.
• icd_code and the category are deliberately absent from the tiles — the page header already carries both as chips, and repeating them would be the same defect in a new place. The differentials tile is the only place the true total appears, since the sidebar list is slice(0, 6).
• Markup is now a <dl> of <dt>/<dd> pairs, which gives screen readers the label/value relationship the previous visual-only pairing lacked. Tiles are non-interactive, so no button-wiring obligation arises.
• The criteria list itself, the conditional #key-features section, #specifiers, #documentation, the whole sidebar (including #record-summary) and the footer pills are untouched. All five ids declared in dsmDiagnosisNavSections still render, so dsm-diagnosis-nav-header.tsx needed no change.
• A local SummaryTile was added rather than importing QuickTile from src/components/specifiers/specifier-ui.tsx: that kit is module-private (all six consumers live under specifiers/), it is p-4 with no shadow and takes no className so it cannot match this page's density, and two of its four tone values paint --info-*/--success-* — hues reserved for safety claims, which is exactly the boundary the DSM category-colour rule exists to hold.

One overlap is deliberate and was chosen explicitly: the sidebar #record-summary card still restates the criteria/specifier counts and severity. The tiles are the top-of-page strip a phone user sees immediately; the sidebar is the desktop sticky reference. Leaving it also keeps that anchor unique, since the tile strip is identified by aria-label only.

Verification

• npm run verify:pr-local

Verification not run: npm run verify:pr-local — this is a single presentational component with no route, data, RAG, clinical-output, schema or provider surface, so the smallest gates that cover it were run directly instead:

• npm run test:focused -- --files src/components/dsm/dsm-diagnosis-page.tsx → Test Files 1 passed (1) / Tests 38 passed (38). vitest related selects tests/in-page-nav-route-sections.dom.test.tsx, the only unit test that renders DsmDiagnosisPage; it asserts every declared nav section id renders an anchor carrying the inPageAnchor scroll-margin class, and that #key-features is correctly dropped for a record without key features.

• npx vitest run tests/dsm.test.ts tests/dsm-category-colour-boundary.test.ts → Test Files 2 passed (2) / Tests 13 passed (13).

• npm run typecheck → clean.

• npm run lint → clean (--max-warnings 0).

• npm run check:design-system-contract → Design-system contract passed (784 production files; raw colors 2; literal shadows 0; …) with legacy shadow aliases 89, unchanged. --shadow-inset is not in the LEGACY_SHADOW_ALIAS set, and --clinical-accent is not a STATUS_COLOR_TOKEN, so neither ratchet moves.

• Rendered proof against the running dev server on four records — substance-medication-induced-psychotic-disorder (4 criteria, A–D), borderline-personality-disorder (1 criterion, A — the singular path), bipolar-ii-disorder (5 criteria, A–E, the one record with criteria_display, which also renders #key-features) and cyclothymic-disorder (Not listed severity). Criterion A's text now appears exactly once in visible markup; the other two occurrences in the response are the RSC flight payload inside <script>. id="record-summary" appears exactly once.

• npm run verify:ui when UI, routing, styling, browser behavior, reduced-motion, or forced-colors behavior changed

UI verification not run: Playwright browser revision drift (#255) — the container has Chromium 1194 but Playwright pins 1234, and npm run check:playwright-browser-revision fails not-installed. Per AGENTS.md a mismatched Chromium path must not be forced, so browser proof is delegated to CI Production UI. No Playwright test asserts on this row's contents, and no route, interaction or search-chrome behaviour changed.

Risk and rollout

• Risk: Low. Presentational only, one file, no data or contract change. The worst case is a cosmetic regression in a summary row; the criteria themselves are rendered by untouched code.
• Rollback: git revert the single commit.
• Provider or production effects: None.

Notes

Two pre-existing data observations surfaced while measuring coverage, both left alone here and worth an /issues capture:

• criteria_display is populated for exactly 1 of 146 records (Bipolar II), so for the other 145 the "Core diagnostic criteria" list is really key_features via the dsmCriteria fallback, and the "Key features" section renders for that single diagnosis only.
• clinical_checkpoints, differential_notes and classification_notes are empty on all 146 records — they are typed and searched but carry no data.

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Generated by Claude Code

Summary by CodeRabbit

• New Features
  • Added an “At a glance” summary to DSM diagnosis pages.
  • Displays criteria, specifiers, differentials, and severity support in four consistent tiles.
  • Improved count labels with singular, plural, and empty-state wording.
  • Added clearer criteria summaries with criterion label ranges.

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[coderabbitai]

📝 Walkthrough

Walkthrough

The DSM diagnosis page replaces variable criteria preview cards with a fixed four-tile “At a glance” summary. New helpers handle count labels and criteria ranges. Existing criteria lists, sidebar, and navigation anchors remain unchanged.

Changes

DSM diagnosis summary

Layer / File(s)	Summary
Summary helpers and criteria data src/components/dsm/dsm-diagnosis-page.tsx	Adds countLabel, the non-interactive SummaryTile component, icon imports, and criteria summary formatting.
At-a-glance grid integration src/components/dsm/dsm-diagnosis-page.tsx, docs/branch-review-records/...record.md	Replaces truncated criteria preview cards with four tiles for criteria, specifiers, differential considerations, and severity-specifier support. Records passing validation and rendered-proof checks.

Estimated code review effort: 2 (Simple) | ~10 minutes

Merge Risk: ⚪ Minimal · up to b865d

This change only replaces duplicated diagnosis-page content with a non-interactive summary row and does not affect data, routing, or production behavior. No actionable merge-blocking risk remains; the verification details should remain in the pull request summary rather than the immutable review record.

Possibly related PRs

• BigSimmo/Database#661: Adds the DSM diagnosis reference mode used by the diagnosis page.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly identifies the main change: removing duplicated diagnostic criteria from the DSM diagnosis page.
Description check	✅ Passed	The description covers the summary, verification results and exceptions, risk, rollback, production effects, and relevant implementation notes.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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📒 Files selected for processing (2)

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• src/components/dsm/dsm-diagnosis-page.tsx

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CI triage

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

• Production UI (3) — needs investigation: inspect the failing step and uploaded diagnostics; rerun only after classifying the cause.
• PR required — needs investigation: inspect the failing step and uploaded diagnostics; rerun only after classifying the cause.

Compared with main CI run #12334 (success).

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