feat(catalog): use catalog metadata for Anthropic model families

[scholarsmate]

Summary

• add Anthropic model family metadata to catalog models
• prefer catalog family metadata in Anthropic reasoning normalization and beta-header handling
• keep model-id inference as the fallback for unknown or uncataloged ids
• add coverage for re-skinned Opus 4.7 ids such as google-claude-47-opus

Why

Issue #3206 points out that substring-only family detection breaks when Anthropic-compatible providers re-skin canonical Claude ids. This lets known catalog models carry the intended family explicitly while preserving existing behavior for unknown ids.

Validation

• node -e "JSON.parse(require('fs').readFileSync('crates/forge_repo/src/provider/provider.json','utf8')); console.log('provider.json ok')"
• git diff --check

Fixes #3206