Changes

PR #1830 by ksylvan: Ensure final newline in model generated outputs

• Add newline to CreateOutputFile if missing and improve tests with t.Cleanup for file removal
• Add test for message with trailing newline and introduce printedStream flag in Chatter.Send
• Print newline if stream printed without trailing newline

Direct commits

• Add v1.4.322 release with concept maps and introduce WELLNESS category with psychological analysis
• Upgrade to Claude Sonnet 4.5 and add Portuguese language variants with BCP 47 support
• Migrate to openai-go/azure SDK for Azure integration
• Update README with recent features and extensions, including new Extensions section navigation
• General repository maintenance and feature documentation updates