chore: embed ToolsetConfig into Toolset (#1885)

To keep a persistent backend storage for configuration, we will have to
keep a single source of truth. This involves supporting bi-directional
conversion between ToolsetConfig and Toolset.


This PR make the following changes:
* Embed ToolsetConfig in Toolset
* Add `ToConfig()` to extract ToolsetConfig from Toolset.

internal/server/server_test.go

@@ -147,7 +147,10 @@ func TestUpdateServer(t *testing.T) {
 	newTools := map[string]tools.Tool{"example-tool": nil}
 	newToolsets := map[string]tools.Toolset{
 		"example-toolset": {
-			Name: "example-toolset", Tools: []*tools.Tool{},
+			ToolsetConfig: tools.ToolsetConfig{
+				Name: "example-toolset",
+			},
+			Tools: []*tools.Tool{},
 		},
 	}
 	newPrompts := map[string]prompts.Prompt{"example-prompt": nil}

internal/tools/toolsets.go

@@ -25,12 +25,16 @@ type ToolsetConfig struct {
 }
 
 type Toolset struct {
-	Name        string          `yaml:"name"`
+	ToolsetConfig
 	Tools       []*Tool         `yaml:",inline"`
 	Manifest    ToolsetManifest `yaml:",inline"`
 	McpManifest []McpManifest   `yaml:",inline"`
 }
 
+func (t Toolset) ToConfig() ToolsetConfig {
+	return t.ToolsetConfig
+}
+
 type ToolsetManifest struct {
 	ServerVersion string              `json:"serverVersion"`
 	ToolsManifest map[string]Manifest `json:"tools"`