fix: Resolve protobuf dependency conflict for pyannote.audio 4.x

- Update protobuf from <5.0.0 to >=5.0.0 (required by opentelemetry-proto)
- Update streamlit minimum version to >=1.30.0 (protobuf 5.x compatible)
- Update regular Dockerfile to match GPU dockerfile structure
- Install PyTorch CPU version in regular Dockerfile for consistency

requirements.txt

@@ -1,6 +1,7 @@
 # OBS Recording Transcriber Dependencies
 # Core dependencies
-streamlit>=1.26.0
+# streamlit>=1.30.0 required for protobuf>=5.0 compatibility
+streamlit>=1.30.0
 moviepy>=1.0.3
 openai-whisper>=20231117
 requests>=2.28.0
@@ -28,7 +29,8 @@ pytorch-lightning>=2.0.0
 
 # Other dependencies
 iso639>=0.1.4
-protobuf>=3.20.0,<5.0.0
+# protobuf>=5.0 required by opentelemetry (pyannote.audio dependency)
+protobuf>=5.0.0
 matplotlib>=3.5.0
 soundfile>=0.10.3
 ffmpeg-python>=0.2.0