feat(claude): add model alias mapping and improve key normalization

- Introduced model alias mapping for Claude configurations, enabling upstream and client-facing model name associations.
- Added `computeClaudeModelsHash` to generate a consistent hash for model aliases.
- Implemented `normalizeClaudeKey` function to standardize input API key configuration, including models.
- Enhanced executor to resolve model aliases to upstream names dynamically.
- Updated documentation and configuration examples to reflect new model alias support.

sdk/cliproxy/service.go

@@ -627,6 +627,9 @@ func (s *Service) registerModelsForAuth(a *coreauth.Auth) {
 		models = registry.GetGeminiCLIModels()
 	case "claude":
 		models = registry.GetClaudeModels()
+		if entry := s.resolveConfigClaudeKey(a); entry != nil && len(entry.Models) > 0 {
+			models = buildClaudeConfigModels(entry)
+		}
 	case "codex":
 		models = registry.GetOpenAIModels()
 	case "qwen":
@@ -743,3 +746,80 @@ func mergeGeminiModels() []*ModelInfo {
 	appendModels(registry.GetGeminiCLIModels())
 	return models
 }
+
+func (s *Service) resolveConfigClaudeKey(auth *coreauth.Auth) *config.ClaudeKey {
+	if auth == nil || s.cfg == nil {
+		return nil
+	}
+	var attrKey, attrBase string
+	if auth.Attributes != nil {
+		attrKey = strings.TrimSpace(auth.Attributes["api_key"])
+		attrBase = strings.TrimSpace(auth.Attributes["base_url"])
+	}
+	for i := range s.cfg.ClaudeKey {
+		entry := &s.cfg.ClaudeKey[i]
+		cfgKey := strings.TrimSpace(entry.APIKey)
+		cfgBase := strings.TrimSpace(entry.BaseURL)
+		if attrKey != "" && attrBase != "" {
+			if strings.EqualFold(cfgKey, attrKey) && strings.EqualFold(cfgBase, attrBase) {
+				return entry
+			}
+			continue
+		}
+		if attrKey != "" && strings.EqualFold(cfgKey, attrKey) {
+			if attrBase == "" || cfgBase == "" || strings.EqualFold(cfgBase, attrBase) {
+				return entry
+			}
+		}
+		if attrKey == "" && attrBase != "" && strings.EqualFold(cfgBase, attrBase) {
+			return entry
+		}
+	}
+	if attrKey != "" {
+		for i := range s.cfg.ClaudeKey {
+			entry := &s.cfg.ClaudeKey[i]
+			if strings.EqualFold(strings.TrimSpace(entry.APIKey), attrKey) {
+				return entry
+			}
+		}
+	}
+	return nil
+}
+
+func buildClaudeConfigModels(entry *config.ClaudeKey) []*ModelInfo {
+	if entry == nil || len(entry.Models) == 0 {
+		return nil
+	}
+	now := time.Now().Unix()
+	out := make([]*ModelInfo, 0, len(entry.Models))
+	seen := make(map[string]struct{}, len(entry.Models))
+	for i := range entry.Models {
+		model := entry.Models[i]
+		name := strings.TrimSpace(model.Name)
+		alias := strings.TrimSpace(model.Alias)
+		if alias == "" {
+			alias = name
+		}
+		if alias == "" {
+			continue
+		}
+		key := strings.ToLower(alias)
+		if _, exists := seen[key]; exists {
+			continue
+		}
+		seen[key] = struct{}{}
+		display := name
+		if display == "" {
+			display = alias
+		}
+		out = append(out, &ModelInfo{
+			ID:          alias,
+			Object:      "model",
+			Created:     now,
+			OwnedBy:     "claude",
+			Type:        "claude",
+			DisplayName: display,
+		})
+	}
+	return out
+}