The 4.7 generation only shipped Claude Opus 4.7; Sonnet stops at 4.6
and Haiku at 4.5 per
https://platform.claude.com/docs/en/about-claude/models/overview.
The earlier `^claude-(?:opus|sonnet|haiku)-4-7` regex on both the
backend strip (_ANTHROPIC_4_7_SAMPLING_REMOVED in external_provider.py)
and the frontend mirror (ANTHROPIC_4_7_SAMPLING_REMOVED_REGEX in
provider-capabilities.ts) would have pre-emptively hidden temperature
/ top_p / top_k for any future claude-sonnet-4-7 or claude-haiku-4-7
id, even though Anthropic has explicitly not extended the sampling
removal beyond Opus. Tighten both regexes to `^claude-opus-4-7(?:[-.]|$)`
and update the routing-test pin so claude-sonnet-4-7 and claude-haiku-4-7
are in `should_not_match`. If those ids ever ship and adopt the same
removal, widening the regex is one-line.
22111744a4