redis缓存替换+pgvector向量替换

ai-chat-backend/services/services.go

@@ -0,0 +1,11 @@
+package services
+
+import (
+	"context"
+	"google.golang.org/grpc/metadata"
+)
+
+func AppendBearerTokenToContext(ctx context.Context, accessToken string) context.Context {
+	md := metadata.Pairs("Authorization", "Bearer "+accessToken)
+	return metadata.NewOutgoingContext(ctx, md)
+}