feat(kiro): add AWS Builder ID authentication support

- Add --kiro-aws-login flag for AWS Builder ID device code flow
- Add DoKiroAWSLogin function for AWS SSO OIDC authentication
- Complete Kiro integration with AWS, Google OAuth, and social auth
- Add kiro executor, translator, and SDK components
- Update browser support for Kiro authentication flows

internal/runtime/executor/cache_helpers.go

@@ -1,10 +1,38 @@
 package executor
 
-import "time"
+import (
+	"sync"
+	"time"
+)
 
 type codexCache struct {
 	ID     string
 	Expire time.Time
 }
 
-var codexCacheMap = map[string]codexCache{}
+var (
+	codexCacheMap   = map[string]codexCache{}
+	codexCacheMutex sync.RWMutex
+)
+
+// getCodexCache safely retrieves a cache entry
+func getCodexCache(key string) (codexCache, bool) {
+	codexCacheMutex.RLock()
+	defer codexCacheMutex.RUnlock()
+	cache, ok := codexCacheMap[key]
+	return cache, ok
+}
+
+// setCodexCache safely sets a cache entry
+func setCodexCache(key string, cache codexCache) {
+	codexCacheMutex.Lock()
+	defer codexCacheMutex.Unlock()
+	codexCacheMap[key] = cache
+}
+
+// deleteCodexCache safely deletes a cache entry
+func deleteCodexCache(key string) {
+	codexCacheMutex.Lock()
+	defer codexCacheMutex.Unlock()
+	delete(codexCacheMap, key)
+}