* Remove Host Bridge watch service
Replace the host bridge file watch service with native JS module chokidar.
Remove the watch service and references to it.
* Remove references to watch service from host provider
- Extract getPackageDefinition() from loadProtoDescriptorSet() in proto-utils
- Add int64 encoding option to handle numbers properly
- Create test-hostbridge-server.ts with mock gRPC service implementations
- Add -h flag to runclinecore.sh to start test server
- Include testing.md documentation for cline rules
Jose Castelli