efiten b1d89d7d9f fix: apply region filter in GetNodes — was silently ignored (#496) (#497) ...

## Summary
- `db.GetNodes` accepted a `region` param from the HTTP handler but
never used it — every region-filter selection was silently ignored and
all nodes were always returned
- Added a subquery filtering `nodes.public_key` against ADVERT
transmissions (payload_type=4) observed by observers with matching IATA
codes
- Handles both v2 (`observer_id TEXT`) and v3 (`observer_idx INT`)
schemas

## Test plan
- [x] 4 new subtests added to `TestGetNodesFiltering`: SJC (1 node), SFO
(1 node), SJC,SFO multi (1 node deduped), AMS unknown (0 nodes)
- [x] All existing Go tests still pass
- [x] Deploy to staging, open `/nodes`, select a region in the filter
bar — only nodes observed by observers in that region should appear

Closes #496

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---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: you <you@example.com>

2026-04-02 17:49:57 -07:00

..

ingestor

test: push ingestor coverage from 70% to 84% (#344) (#492)

2026-04-02 17:31:47 -07:00

server

fix: apply region filter in GetNodes — was silently ignored (#496) (#497)

2026-04-02 17:49:57 -07:00