Add claude code support

internal/config/config.go

@@ -36,6 +36,8 @@ type Config struct {
 
 	// RequestLog enables or disables detailed request logging functionality.
 	RequestLog bool `yaml:"request-log"`
+
+	ClaudeKey []ClaudeKey `yaml:"claude-api-key"`
 }
 
 // QuotaExceeded defines the behavior when API quota limits are exceeded.
@@ -48,6 +50,11 @@ type QuotaExceeded struct {
 	SwitchPreviewModel bool `yaml:"switch-preview-model"`
 }
 
+type ClaudeKey struct {
+	APIKey  string `yaml:"api-key"`
+	BaseURL string `yaml:"base-url"`
+}
+
 // LoadConfig reads a YAML configuration file from the given path,
 // unmarshals it into a Config struct, applies environment variable overrides,
 // and returns it.