feat: Grafana MCP を導入

[cp-20]

PR Type

enhancement, configuration changes

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Description

• Grafana MCP の導入と設定を追加

• MCPOptions に Authorization フィールドを追加

• MCP のデフォルト設定に Grafana を追加

• 必須環境変数の取得関数を追加

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Diagram Walkthrough

flowchart LR
  A["MCPOptions"] -- "Add Authorization" --> B["ToolMcpParam"]
  B -- "Add Grafana MCP" --> C["DefaultSpecs"]
  C -- "Use MCPConfig" --> D["config.go"]

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File Walkthrough

	Relevant files
Enhancement	tooling.go MCPOptions とデフォルト設定の強化                                                                      internal/gpt/tooling/tooling.go MCPOptions に Authorization フィールドを追加 MCP のデフォルト設定に Grafana を追加 MCPOptions のバリデーションを強化 +29/-2
Tests	tooling_test.go 不要なテストの削除                                                                                                internal/gpt/tooling/tooling_test.go TestDefaultSpecsProvider テストを削除 +0/-21
Configuration changes	config.go MCPConfig の追加と環境変数管理の強化                                                                    internal/pkg/config/config.go 必須環境変数の取得関数を追加 MCPConfig 構造体を追加 +18/-0

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[github-actions]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 3 🔵🔵🔵⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Validation Logic The validation logic for MCPOptions has been updated to include checks for Authorization and ApprovalPolicy. Ensure that these validations are comprehensive and correctly handle all possible input scenarios. func (o MCPOptions) validate() error { if strings.TrimSpace(o.ServerLabel) == "" { return errors.New("mcp server label is required") } if !o.ServerURL.Valid() { return errors.New("mcp server url is required") } if strings.TrimSpace(o.ApprovalPolicy) == "" { return errors.New("mcp approval policy is required") } if o.ApprovalPolicy != "always" && o.ApprovalPolicy != "never" && o.ApprovalPolicy != "prompt" { return fmt.Errorf("invalid mcp approval policy: %s", o.ApprovalPolicy) } if o.Authorization.Valid() && strings.TrimSpace(o.Authorization.Value) == "" { return errors.New("mcp authorization, if provided, cannot be empty") } Environment Variable Handling The function mustGetEnv is introduced to handle required environment variables. Verify that this function is used appropriately and consider the implications of using panic if the environment variable is not set. func mustGetEnv(key string) string { if value, exists := os.LookupEnv(key); exists { return value } panic(fmt.Sprintf("environment variable %s is required", key))