Merge origin/main into docs/adsbdb-attribution

# Conflicts:
#	CHANGELOG.md

CHANGELOG.md

@@ -10,6 +10,14 @@
   `DATA_CREDITS` entry surfaces the credit in the in-app Data attribution
   popover, and a test pins the wording the route data requires.
 
+- Size the TomTom daily tile budget to the provider's real free allowance.
+  `TOMTOM_DAILY_TILE_BUDGET` defaulted to 40,000/day against an allowance
+  granted monthly (200,000 tile requests/month), exhausting a month in five
+  days and leaving the traffic layer dead for the rest of the period. The
+  default is now 6,000/day (186,000 over a 31-day month). Corrects the stale
+  "~50k/day" free-tier figure in the proxy, `.env.example` and
+  `DATA_SOURCES.md`. Still an application-side ceiling, not a billing cap.
+
 - Distinguish PARTIAL vessel snapshots from STALE data in the layer panel, with
   accepted-record counts and unchanged retention, freshness and outage safeguards.