Remove visual zone boundary overlays from Bulawayo map

[roy-bme]

Motivation

• The zone boundary rectangles/polygons were visually cluttering the map and obscuring business pins, so the map should no longer render filled zone overlays while keeping zone names and zone data intact.

Description

• Removed the rendered zone overlay layer by deleting the dedicated zones LayerGroup and its management in components/ops/Map/BulawayoMap.tsx.
• Removed zonesPane creation and the L.geoJSON(...)-based polygon rendering and hover styling so no filled rectangles/polygons are added to the map.
• Removed the now-unused ZONE_TYPE_COLORS and zoneColor helpers and cleaned up the layersRef type to exclude zones while preserving zoneLabels and other layers.
• Kept zone label markers (via zoneLabelsPane / zoneLabels layer) and preserved zones data usage such as zoneNameById and zone_id mapping for filtering/assignment logic.

Testing

• Ran the TypeScript type check with npm run typecheck (which runs tsc --noEmit) and it completed successfully.

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Codex Task

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Project	Deployment	Actions	Updated (UTC)
blackmasswebsite	Ready	Preview, Comment	May 14, 2026 5:20pm

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