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DXpedition callsigns like TX5EU (Austral Islands) were showing at the generic prefix location (TX → France) because CTY.DAT maps TX to Metropolitan France. Now cross-references DX cluster spots against the active DXpedition list from NG3K. If a spotted callsign matches a known active DXpedition, uses the DXpedition's DXCC entity coordinates from cty.dat instead of the generic prefix. This runs after grid square resolution but before HamQTH/prefix fallbacks. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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DXpedition callsigns like TX5EU (Austral Islands) were showing at the generic prefix location (TX → France) because CTY.DAT maps TX to Metropolitan France.
Now cross-references DX cluster spots against the active DXpedition list from NG3K. If a spotted callsign matches a known active DXpedition, uses the DXpedition's DXCC entity coordinates from cty.dat instead of the generic prefix. This runs after grid square resolution but before HamQTH/prefix fallbacks.
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server.js: caches have TTLs and size caps (we serve 2,000+ concurrent users)var(--accent-cyan), etc.).bak,.old,console.logdebug lines, or test scripts includedScreenshots (if visual change)