chore(sync): 上游同步 - 快照导入 upstream/main@e70fe1b9（v1.6.5）并重放本项目差异

backend/go.mod

@@ -7,6 +7,7 @@ require (
 	github.com/gabriel-vasile/mimetype v1.4.13
 	github.com/gin-gonic/gin v1.12.0
 	github.com/google/uuid v1.5.0
+	github.com/jackc/pgx/v5 v5.10.0
 	github.com/qiniu/go-sdk/v7 v7.27.0
 	github.com/redis/go-redis/v9 v9.22.0
 	github.com/tencentyun/cos-go-sdk-v5 v0.7.75
@@ -44,7 +45,6 @@ require (
 	github.com/google/go-querystring v1.1.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
-	github.com/jackc/pgx/v5 v5.10.0 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/jinzhu/now v1.1.5 // indirect