Add protocol selection to Claude and Codex provider forms referencing CCSwitch

internal/config/store.go

@@ -104,10 +104,10 @@ func (s *Store) ActiveCodex() *Provider {
 }
 
 // AddProvider validates and appends a provider for the given target.
-func (s *Store) AddProvider(name, preset, baseURL, apiKey string, models Models, target string) (*Provider, error) {
+func (s *Store) AddProvider(name, preset, baseURL, apiKey string, models Models, target string, protocol ...string) (*Provider, error) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
-	p, err := newProvider(name, preset, baseURL, apiKey, models, target)
+	p, err := newProvider(name, preset, baseURL, apiKey, models, target, protocol...)
 	if err != nil {
 		return nil, err
 	}
@@ -121,7 +121,7 @@ func (s *Store) AddProvider(name, preset, baseURL, apiKey string, models Models,
 // UpdateProvider replaces a provider's editable fields. An empty apiKey
 // keeps the stored key so edits never wipe it by accident; an empty
 // target keeps the stored one.
-func (s *Store) UpdateProvider(id, name, preset, baseURL, apiKey string, models Models, target string) (*Provider, error) {
+func (s *Store) UpdateProvider(id, name, preset, baseURL, apiKey string, models Models, target string, protocol ...string) (*Provider, error) {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 	idx := -1
@@ -141,7 +141,11 @@ func (s *Store) UpdateProvider(id, name, preset, baseURL, apiKey string, models
 	if target == "" {
 		target = existing.Target
 	}
-	updated, err := newProvider(name, preset, baseURL, apiKey, models, target)
+	proto := existing.Protocol
+	if len(protocol) > 0 && strings.TrimSpace(protocol[0]) != "" {
+		proto = strings.TrimSpace(protocol[0])
+	}
+	updated, err := newProvider(name, preset, baseURL, apiKey, models, target, proto)
 	if err != nil {
 		return nil, err
 	}