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- split backend API into route/service/repository boundaries across stats, owner, and pathing\n- extract shared API bootstrap and helper modules\n- reduce MapLibreMap into smaller frontend map modules with extracted builders, config, popup UI, and types\n- continue worker modularization by extracting RF terrain/tile helpers alongside RF config and loss helpers\n- add repo-local architecture, DB lifecycle, link model, pathing, frontend map, and contributing docs\n\nThis is the verified refactor checkpoint: backend and frontend builds passed, worker syntax checks passed, affected containers were rebuilt, and /healthz is OK.
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Pathing
Purpose
Pathing resolves packet routes into higher-confidence purple segments and lower-confidence red segments.
Main layers
backend/src/path-beta/- resolver implementation
- worker pool
- geometry helpers
- fallback logic
backend/src/pathing/- service/repository orchestration for API-facing pathing endpoints
Evidence priorities
In practice the resolver should rank evidence roughly like this:
- physically plausible link support
- multibyte path evidence
- radio-neighbour evidence
- weaker observational hints
API ownership
backend/src/api/routes/pathing.ts- thin HTTP wrapper
backend/src/pathing/pathingService.ts- cache and resolver orchestration
backend/src/pathing/pathingRepository.ts- DB-backed path history and learning queries
Contributor rule
If a path looks wrong, first determine whether the issue is:
- evidence weighting
- physical graph quality
- ambiguous short-hash matching
- cache reuse
Do not debug purple/red rendering as if it were a frontend-only problem.