Fix protogen to only compile .proto files (#238)

The glob pattern in runProtoc matched all files in proto directories,
which breaks compilation when non-proto files (e.g. .yaml service
definitions) are present alongside .proto files.

Made-with: Cursor

Author: rkannan82

cmd/protogen/main.go

@@ -138,7 +138,7 @@ func runProtoc(ctx context.Context, cfg genConfig, protoDirs []string) error {
 
 	for i := 0; i < len(protoDirs); i++ {
 		dir := protoDirs[i]
-		files, err := filepath.Glob(filepath.Join(dir, "*"))
+		files, err := filepath.Glob(filepath.Join(dir, "*.proto"))
 		if err != nil {
 			return err
 		}