Improve camera node rendering#137

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dougborg wants to merge 9 commits into

FoggedLens:mainfrom

dougborg:feat/camera-rendering-improvements

Commits on Mar 7, 2026

Add offline-first tile system with per-provider caching and error retry

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Allow OSM offline downloads, disable button for restricted providers

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Detect config drift in cached tile providers and replace stale instances

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Parallelize quadrant fetching and add smart 429 retry (#109)

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Cancel stale Overpass fetch requests via generation counter

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Add progressive rendering during parallel quadrant fetching

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Cancel debounce timer in dispose to prevent post-disposal callbacks

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Improve camera node rendering: zoom scaling, wedge cones, clustering

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Raise default max rendered nodes from 500 to 2000

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