fix: resolve lint issues from /v3 refactor

- Fix gofmt formatting in tools/codeformat/formatimports.go
- Remove unused nolint directive in modules/git/gitcmd/command.go

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

modules/git/gitcmd/command.go

@@ -17,7 +17,7 @@ import (
 	"strings"
 	"time"
 
-	"code.gitcaddy.com/server/v3/modules/git/internal" //nolint:depguard // only this file can use the internal type CmdArg
+	"code.gitcaddy.com/server/v3/modules/git/internal"
 	"code.gitcaddy.com/server/v3/modules/gtprof"
 	"code.gitcaddy.com/server/v3/modules/log"
 	"code.gitcaddy.com/server/v3/modules/process"

tools/codeformat/formatimports.go

@@ -13,7 +13,7 @@ import (
 )
 
 var importPackageGroupOrders = map[string]int{
-	"":                          1, // internal
+	"":                             1, // internal
 	"code.gitcaddy.com/server/v3/": 2,
 }