max bittkerandClaude 3bdb46329b Track sdk/collision-data.json again; add refresh script ...

716a9375f removed collision-data.json from tracking and gitignored it as
"regenerable", but sdk/pathfinding.ts imports it statically -- so a fresh
clone hard-failed on import with no way to know why. Nothing fetched it.

Re-track it. The anti-bloat rationale was already sunk cost: that commit
never rewrote history, so all 12 prior collision-data blobs remain reachable
and every clone already pays for them. One more version costs ~3.4MB packed
(23MB raw, but it's highly repetitive), against a 259MB .git.

Add sdk/fetch-collision-data.ts to regenerate it from a running server,
replacing the bare curl in DEVELOPERS.md -- it buffers before writing so an
interrupted download can't leave a truncated file that breaks the import,
and needs --force to clobber. The committed copy is a fresh export: 123,648
zones (= 483 mapsquares, full coverage), 1,068,791 tiles, 2,603 doors.

Co-Authored-By: Claude <noreply@anthropic.com>

2026-07-17 09:27:47 -04:00

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