fix: sitewide accessibility — nav labels, table scope, aria-live, tablist, SVG

[OAGr]

Summary

Fixes 6 P2 accessibility bugs from QA sweep (Discussion #3220):

• Bug 65: Added aria-label to all <nav> elements (Main navigation, Breadcrumb)
• Bug 66: Added scope="col" to all <th> via SortHeader + non-sortable headers; added <caption className="sr-only"> to orgs/ai-models/people tables
• Bug 67: Added role="status" + aria-live="polite" to loading indicators in orgs/people tables
• Bug 68: Added aria-label to ProfileTabs tablist ("Organization sections", "Person sections", "Legislation sections")
• Bug 69: Added dynamic aria-label to "View all →" links on homepage
• Bug 72: Added aria-hidden="true" to decorative SVG icons in nav/mobile menu

13 files changed, 35 insertions, 18 deletions.

Test plan

• All tests pass
• Changes are additive ARIA attributes — no visual or behavioral changes

🤖 Generated with Claude Code

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 98e09dd3-b4e5-4559-9955-d04d32f8be0f

📥 Commits

Reviewing files that changed from the base of the PR and between 8b8627c and 7dd5f4d.

📒 Files selected for processing (13)

• apps/web/src/app/ai-models/ai-models-table.tsx
• apps/web/src/app/layout.tsx
• apps/web/src/app/legislation/[slug]/page.tsx
• apps/web/src/app/organizations/[slug]/page.tsx
• apps/web/src/app/organizations/organizations-table.tsx
• apps/web/src/app/page.tsx
• apps/web/src/app/people/[slug]/page.tsx
• apps/web/src/app/people/people-table.tsx
• apps/web/src/components/MobileNav.tsx
• apps/web/src/components/NavDropdown.tsx
• apps/web/src/components/directory/Breadcrumbs.tsx
• apps/web/src/components/directory/ProfileTabs.tsx
• apps/web/src/components/directory/SortHeader.tsx

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/fix-p2-accessibility

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[github-actions]

Test Coverage Report

Workspace	Lines	Branches	Functions	Statements
wiki-server	50.8%	34.2%	47.2%	49.4%
web	9.5%	7.7%	5.5%	9.4%
discord-bot	39.4%	30.5%	44.1%	38.4%
crux	27.0%	24.2%	30.3%	27.1%
Total	24.9%	18.8%	20.9%	24.6%

Coverage is advisory only — no thresholds enforced. Generated by vitest --coverage.