Add Makefile targets for generating Go and Python Protobuf code separately

Makefile

@@ -3,26 +3,31 @@
 
 all: gen_go gen_py
 
+# 只生成 Go 代码
+go: gen_go
+
+# 只生成 Python 代码
+py: gen_py
+
+
 gen_go:
-    @echo "Generating Go Protobuf code..."
-    mkdir -p server/gen/pb
-    protoc --proto_path=proto \
-           --go_out=server/gen/pb \
-           --go_opt=paths=source_relative \
-           --go-temporal_out=server/gen/pb \
-           --go-temporal_opt=paths=source_relative \
-           proto/*.proto
+	@echo "Generating Go Protobuf code..."
+	mkdir -p server/gen/pb
+	protoc --proto_path=proto \
+	       --go_out=server/gen/pb \
+	       --go_opt=paths=source_relative \
+	       proto/*.proto
 
 gen_py:
-    @echo "Generating Python Protobuf code..."
-    mkdir -p worker/gen
-    python3 -m grpc_tools.protoc \
-            --proto_path=proto \
-            --python_out=worker/gen \
-            --pyi_out=worker/gen \
-            proto/*.proto
+	@echo "Generating Python Protobuf code..."
+	mkdir -p worker/gen
+	python3 -m grpc_tools.protoc \
+	        --proto_path=proto \
+	        --python_out=worker/gen \
+	        --pyi_out=worker/gen \
+	        proto/*.proto
 
 clean:
-    @echo "Cleaning generated files..."
-    rm -rf server/gen
-    rm -rf worker/gen
+	@echo "Cleaning generated files..."
+	rm -rf server/gen
+	rm -rf worker/gen