chore: 清理 go.mod，移除本地 replace，db/reflux/req 锁定真实版本

本地多仓库协同开发改用父目录的 go.work，不用再靠这个仓库自己的 replace
指向兄弟目录；db/reflux/req 锁定成各自 master 最新的真实 commit。

go.mod

@@ -1,22 +1,26 @@
 module git.fsdpf.net/go/condition
 
-go 1.21
+go 1.25.5
 
 require (
-	git.fsdpf.net/go/db v0.0.0-20241125095839-f186c88c5c2a
-	git.fsdpf.net/go/req v0.0.0-20241126093511-f1774e5ca2f0
+	git.fsdpf.net/go/db v0.0.0-20260820090948-9c6bb5a83508
+	git.fsdpf.net/go/reflux v0.0.0-20260820092857-1f48635da3f1
+	git.fsdpf.net/go/req v0.0.0-20260820100114-1d95bf64a2a0
 	git.fsdpf.net/go/utils v0.0.0-20240509025914-c03a9cb48aff
-	github.com/samber/lo v1.39.0
-	github.com/spf13/cast v1.6.0
+	github.com/samber/lo v1.49.1
+	github.com/spf13/cast v1.10.0
+	github.com/stretchr/testify v1.11.1
 )
 
 require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/go-chi/chi/v5 v5.0.12 // indirect
-	github.com/go-sql-driver/mysql v1.7.0 // indirect
-	github.com/mattn/go-sqlite3 v1.14.16 // indirect
+	github.com/mattn/go-sqlite3 v1.14.42 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/tidwall/gjson v1.17.1 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.0 // indirect
 	github.com/tidwall/sjson v1.2.5 // indirect
-	golang.org/x/exp v0.0.0-20220303212507-bbda1eaf7a17 // indirect
+	golang.org/x/text v0.25.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )