Jaume Garriga Maestre 4e3a3b4393 feat: add zoom controls to map levels 5 and 6 ...

- Add +/−/⊠ zoom buttons overlay on the SVG map container
- Implement viewBox-based zoom (1×–8×) centered on map midpoint
- Add drag-to-pan when zoomed in (pointer events, ignores comarca clicks)
- Add pinch-to-zoom gesture support for touch devices
- Zoom resets to full view at the start of each new game

2026-05-06 13:03:34 +02:00

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