[Luen]

Closes #172.

What

• Season slider + Play above the map on /nurseries. The last stop is "All seasons" (today's view); Play steps through seasons every 1.2 s and stops at 2025–26. Dragging the slider pauses playback.
• Circles use one catch-rate scale for every frame (the largest nursery-season value), so sizes compare across seasons.
• Nurseries not sampled with timed sets that season are dashed rings; the popup says "Not sampled this season" or "N sets, none timed".
• InteractiveMap now redraws its layers when the layers prop changes, keeping the view and any overlays the reader switched off. New optional MapLayer.max fixes the size scale.
• Slider is a native range input with aria-valuetext; the SSR fallback is unchanged.

Checks

pnpm lint, pnpm check, pnpm test, pnpm build, pnpm test:e2e (38 passed). Checked against the real data in the dev server: the slider, Play and the dashed rings work, and there is one layer control.

#173 and #174 are stacked on this branch (they extend InteractiveMap too), so merge this first.

🤖 Generated with Claude Code

[Luen]

Reviewed the three changed files and pushed a fix.

[P2] Restore text-only map tooltips. The redraw loop in InteractiveMap.svelte passed p.label directly to Leaflet's bindTooltip, which parses strings as HTML. Adult names come from workbooks, so markup in a name became DOM on hover. This undid the explicit textContent protection already in main (#144). CSP limits script execution but does not prevent HTML injection.

Fixed in 045cf04, with the browser test corrected in cfe1404: labels now use a DOM element populated with textContent. A browser regression injects a synthetic markup-containing label and verifies literal text with no injected element. Added the Leaflet caveat to AGENTS.md.

The season indexing, shared scale, redraw lifecycle and overlay retention otherwise look consistent. This branch passed lint, type checks, build, unit tests (118 passed; 2 real-data tests skipped), and the tooltip browser regression. The full combined stack additionally passed 41 browser tests. Fix propagated through #178, #179 and #184 without force-pushing. No spreadsheets changed.

[Luen]

Re-reviewed current head cfe1404, including the earlier tooltip fix. No additional actionable findings. Checked season/row alignment, pooled versus per-season catch rates, shared size domain, missing-value rings, playback cleanup, CSV registration, and overlay redraw/visibility retention.

Fresh validation on this branch: pnpm lint; pnpm check (0 errors/warnings); pnpm test (118 passed, 2 opt-in real-data tests skipped); pnpm build; pnpm test:e2e (39 passed, including the tooltip regression and light/dark axe checks). No further code changes needed. Review complete; proceeding to #178.