feat(config): add support for disabling OpenAI compatibility providers

- Introduced a `Disabled` flag to OpenAI compatibility configurations.
- Updated routing, auth selection, and API handling logic to respect the `Disabled` state.
- Extended relevant APIs, YAML configurations, and data structures to include the `Disabled` field.
- Adjusted all relevant loops and filters to skip disabled providers.

Closes: #3060 #3059 #2977

internal/api/handlers/management/api_tools.go

@@ -766,6 +766,9 @@ func resolveOpenAICompatAPIKeyProxyURL(cfg *config.Config, auth *coreauth.Auth,
 
 	for i := range cfg.OpenAICompatibility {
 		compat := &cfg.OpenAICompatibility[i]
+		if compat.Disabled {
+			continue
+		}
 		for _, candidate := range candidates {
 			if candidate != "" && strings.EqualFold(strings.TrimSpace(candidate), compat.Name) {
 				for j := range compat.APIKeyEntries {

internal/api/handlers/management/config_auth_index.go

@@ -36,6 +36,7 @@ type openAICompatibilityAPIKeyWithAuthIndex struct {
 type openAICompatibilityWithAuthIndex struct {
 	Name          string                                   `json:"name"`
 	Priority      int                                      `json:"priority,omitempty"`
+	Disabled      bool                                     `json:"disabled"`
 	Prefix        string                                   `json:"prefix,omitempty"`
 	BaseURL       string                                   `json:"base-url"`
 	APIKeyEntries []openAICompatibilityAPIKeyWithAuthIndex `json:"api-key-entries,omitempty"`
@@ -215,6 +216,7 @@ func (h *Handler) openAICompatibilityWithAuthIndex() []openAICompatibilityWithAu
 		response := openAICompatibilityWithAuthIndex{
 			Name:      entry.Name,
 			Priority:  entry.Priority,
+			Disabled:  entry.Disabled,
 			Prefix:    entry.Prefix,
 			BaseURL:   entry.BaseURL,
 			Models:    entry.Models,

internal/api/handlers/management/config_lists.go

@@ -464,6 +464,7 @@ func (h *Handler) PatchOpenAICompat(c *gin.Context) {
 	type openAICompatPatch struct {
 		Name          *string                             `json:"name"`
 		Prefix        *string                             `json:"prefix"`
+		Disabled      *bool                               `json:"disabled"`
 		BaseURL       *string                             `json:"base-url"`
 		APIKeyEntries *[]config.OpenAICompatibilityAPIKey `json:"api-key-entries"`
 		Models        *[]config.OpenAICompatibilityModel  `json:"models"`
@@ -506,6 +507,9 @@ func (h *Handler) PatchOpenAICompat(c *gin.Context) {
 	if body.Value.Prefix != nil {
 		entry.Prefix = strings.TrimSpace(*body.Value.Prefix)
 	}
+	if body.Value.Disabled != nil {
+		entry.Disabled = *body.Value.Disabled
+	}
 	if body.Value.BaseURL != nil {
 		trimmed := strings.TrimSpace(*body.Value.BaseURL)
 		if trimmed == "" {

internal/api/server.go

@@ -1100,6 +1100,9 @@ func (s *Server) UpdateClients(cfg *config.Config) {
 	openAICompatCount := 0
 	for i := range cfg.OpenAICompatibility {
 		entry := cfg.OpenAICompatibility[i]
+		if entry.Disabled {
+			continue
+		}
 		openAICompatCount += len(entry.APIKeyEntries)
 	}