offroute: PostGIS entry points with 100m densification and land_status tagging

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- Migrate EntryPointIndex from SQLite to PostGIS (padus database)
- Densify highway LineStrings at 100m intervals via Shapely interpolate
- 2.94M entry points from 476k lines (4x more coverage)
- Tag each entry point with land_status via ST_Intersects against padus_sub
  - 1.64M public (56%), 1.30M unknown (44%)
- Add geography GIST index for fast radius queries (~25ms)
- Increase OFF_NETWORK_THRESHOLD_M from 10m to 50m for GPS accuracy
- PBF path and PostGIS DSN configurable via home.yaml

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

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Matt 2026-05-09 03:28:58 +00:00

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commit b4e33eb048

2 changed files with 1483 additions and 1333 deletions

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lib/offroute/router.py

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