添加对 PyPI 的支持，包括配置示例、缓存策略和集成测试

internal/config/config_test.go

@@ -59,6 +59,7 @@ func TestHubTypeValidation(t *testing.T) {
 		{"docker ok", "docker", false},
 		{"npm ok", "npm", false},
 		{"go ok", "go", false},
+		{"pypi ok", "pypi", false},
 		{"missing type", "", true},
 		{"unsupported type", "rubygems", true},
 	}

internal/config/validation.go

@@ -12,9 +12,10 @@ var supportedHubTypes = map[string]struct{}{
 	"docker": {},
 	"npm":    {},
 	"go":     {},
+	"pypi":   {},
 }
 
-const supportedHubTypeList = "docker|npm|go"
+const supportedHubTypeList = "docker|npm|go|pypi"
 
 // Validate 针对语义级别做进一步校验，防止非法配置启动服务。
 func (c *Config) Validate() error {