Experiment: Heatmapping

[baltinerdist]

Summary

• Adds a population heatmap to the Kingdom profile map tab — park pins are weighted by active players (1+ sign-ins in the past 12 months), with a toggle between By Participation (visitors) and By Residents (home park members)
• Adds a global Atlas Heatmap page (Route=Atlas/heatmap) — same heatmap concept applied across all parks worldwide, gated to kingdom officers and ORK admins
• Atlas index shows a "Population Heatmap" button for eligible users, linking to the dedicated page
• Atlas heatmap includes a Hide Pins toggle for a clean heatmap-only view

Auth

Access is gated by querying ork_authorization directly for any kingdom_id > 0 row — correctly handles monarchs regardless of session kingdom_id state.

Test plan

• Log in as a kingdom officer/monarch — confirm "Population Heatmap" button appears on the Atlas page
• Navigate to Route=Atlas/heatmap — confirm map loads with heatmap overlay
• Toggle By Participation / By Residents — heatmap density should change live
• Toggle Hide Pins — park pins should disappear, leaving only heat signatures
• Click Show Pins — pins restore
• Click a park pin — sidebar shows Visitors and Residents counts
• Log out or use a non-officer account — confirm button is hidden and /heatmap redirects to Atlas
• Kingdom profile Map tab — confirm heatmap overlay renders, toggle works

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