v0.8.1 - Transcription accuracy and smarter cleanup

Transcription accuracy

• Correctly maps the selected Windows microphone and preserves its native capture rate.
• Keeps Groq's complete top-level transcript authoritative.
• Adds confidence-gated alternate decoding for short dictation when auto-retry is enabled.
• Compacts long internal silence before upload to reduce Whisper repetition and hallucination loops.

Smarter cleanup

• Moderate cleanup understands explicit repairs such as "I mean," "sorry," "or rather," and "scratch that."
• Adds structured positive and negative examples for GPT-OSS and Gemini.
• Allows only bounded, validated self-corrections and small function-word grammar repairs; unsafe paraphrases still fall back to the raw transcript.

Validation

• 248 automated tests pass.
• The add-on manifest is version 0.8.1 and the package was inspected for required files and portable ZIP paths.