Issue #3566246: Add Haiku to ChatJsonOutput capability filter regex

Carlos Ospinarequested to merge
issue/ai_provider_anthropic-3566246:3566246-claude-haiku-4.5 into 1.2.x

Summary

  • Add haiku to the ChatJsonOutput capability filter regex so Claude Haiku 4.5 appears in model selection dropdowns that require JSON output capability

Co-Authored-By: Claude Opus 4.6 noreply@anthropic.com

Closes #3566246

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