docs: update Go code style guidelines and linting requirements

- Enhanced AGENTS.md to include post-editing commands for Go code, specifying the use of `gofmt -w`, `go vet ./...`, and `scripts/lint-go.ps1`.
- Updated engineering rules in .cursor/rules/engineering.mdc to clarify the linting process and ensure consistency in Go code formatting.
- Improved documentation for CI checks related to Go code style and linting.

internal/agentserver/server.go

@@ -15,20 +15,20 @@ import (
 
 // Config holds evobgp-agent serve settings.
 type Config struct {
-	Listen           string
-	Secret           string
-	ControlPlaneURL  string
-	NodeToken        string
-	SpeakerID        string
-	PubKeyB64        string
-	PubKeyHex        string
-	ExtractDir       string
-	BirdBin          string
-	BirdcBin         string
-	Socket           string
-	SyncTimeout      time.Duration
-	LastSync         func() (revisionID string, at time.Time)
-	OnSyncSuccess    func(revisionID string)
+	Listen          string
+	Secret          string
+	ControlPlaneURL string
+	NodeToken       string
+	SpeakerID       string
+	PubKeyB64       string
+	PubKeyHex       string
+	ExtractDir      string
+	BirdBin         string
+	BirdcBin        string
+	Socket          string
+	SyncTimeout     time.Duration
+	LastSync        func() (revisionID string, at time.Time)
+	OnSyncSuccess   func(revisionID string)
 }
 
 // Server serves Panel→Node internal API (Remnawave-style wake-up).
@@ -107,9 +107,9 @@ func (s *Server) handleSync(w http.ResponseWriter, r *http.Request) {
 		s.cfg.OnSyncSuccess(res.RevisionID)
 	}
 	writeJSON(w, http.StatusOK, map[string]any{
-		"ok":                    true,
-		"applied_revision_id":   res.RevisionID,
-		"main_config":           res.MainConfig,
+		"ok":                  true,
+		"applied_revision_id": res.RevisionID,
+		"main_config":         res.MainConfig,
 	})
 }