feat(transcription): add oWhisper integration support (wip)

[braden-w]

This PR adds initial support for oWhisper as a transcription service option in Whispering.

Work in Progress 🚧

This is an early draft implementation that explores adding oWhisper as an alternative transcription provider alongside the existing OpenAI, Groq, Deepgram, and whispercpp options.

What's Implemented

• Basic oWhisper service integration module
• Service registration in the transcription layer
• UI configuration options in settings page
• Query layer updates to support the new service

TODO

• [ ] Complete implementation details
• [ ] Add error handling
• [ ] Test integration with oWhisper API
• [ ] Add configuration validation
• [ ] Update documentation
• [ ] Validate audio format compatibility

Notes

This implementation is still experimental and provides users with an additional transcription service option to choose from.