* feat(models): add Codex gpt-5.6 series (sol/terra/luna) to model list & pricing (MUL-4347)
Co-authored-by: multica-agent <github@multica.ai>
* fix(models): official gpt-5.6 pricing, exact aliases, max/ultra effort levels (MUL-4347)
- Replace provisional gpt-5.6 rates with OpenAI's official announcement
values (sol 5/30, terra 2.5/15, luna 1/6); cache read 0.1x input, cache
write 1.25x input (frontend + backend, kept in sync).
- Anchor gpt-5.6 price aliases to exact match so unknown suffixed variants
surface as unmapped instead of borrowing a tier.
- Add Codex 0.144.1 max/ultra effort levels to the label map and server
enum so the daemon-advertised catalog matches what the API can persist;
add a catalog->API contract test.
- Clarify that the codex Default flag is the effort-validation anchor, not a
user-facing badge.
- Note the cache-write measurement limitation (codex usage stream doesn't
report cache-write tokens yet).
Co-authored-by: multica-agent <github@multica.ai>
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Co-authored-by: J <j@multica.ai>
Co-authored-by: multica-agent <github@multica.ai>
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