Move prompts to separate files and add prompt types

- Created directory structure for prompts (system and user prompts)
- Added specialized prompts for lectures, meetings, and interviews
- Updated enhancer.py to load prompts from files
- Added --prompt-type CLI parameter to select prompt type
- Updated documentation and enhancement proposals

README.md

@@ -49,6 +49,7 @@ python main.py --input-dir /path/to/audio/files --output-dir /path/to/output [--
 - `--output-dir`: Directory for output files (default: "output")
 - `--turbo`: Enable turbo mode for faster inference (uses int8_float16 compute type)
 - `--force`: Force re-processing of files even if output files already exist
+- `--prompt-type`: Type of content to enhance (choices: "lecture", "meeting", "interview", default: "lecture")
 
 ### Turbo Mode Hardware Requirements