python/v0.4.0

Added

• Preserve repeated multipart form fields used by audio transcription requests.
• Add generated MiniMax H3 input contract metadata.
• Add shared request validation metadata for Qwen 3 image endpoints.
• Add Fish Audio s2.1-pro and MP3 or WAV output constraints to shared contract metadata.

Changed

• Update generated Grok Imagine Preview resolution and reference image constraints.