Three router bugs surfaced by testing real filed pairs against the
Eurocontrol IFPUV oracle:
- ROUTE130 repair now collapses the leg chain when dropping an unknown
designator (a computer-nav fix like GT27A on an airway), instead of
leaving a dangling `AWY AWY`. Same airway on both sides -> merge; else DCT.
- FL detour ratio 1.6 -> 1.25: the FL-filtered graph fragments the
conventional (<=FL195) network and forced an absurd London detour for a
domestic French hop; the short full route now wins.
- FL ceiling-cap: file a short low-level pair at its airways' natural
ceiling instead of an optimistic FL360 (which yields PROF195 on every
leg). Gated on upper-network fragmentation so genuine high-level
long-haul (EGLL-LSZH) is never wrongly lowered.
- New PROF195 repair lowers the cruise FL to where the cited airway exists.
LFRS-LFST now no-error at FL080 (0 iterations); LFRN-LFMN and LSGG-LFPO
still pass and now converge in 0 iterations. 4 new unit tests; 49 green.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Alexandre
6a3a885c47