fix(cmd): improve editor selection logic in edit command

* Enhance the editor selection to check for nvim and nano before defaulting to vi.
* Return an error if no suitable editor is found.
fix(cmd): track unchanged units in syncup command
* Add tracking for unchanged units during syncup process.
* Update completion message to include count of unchanged units.
fix(runtime): change command type to slice in podman container
* Update command field in podmanContainer struct to be a slice of strings.
* Adjust ListRunning method to join command slice into a single string for output.
fix(ci): enhance release notes generation in workflow
* Collect commit messages since the last tag for release notes.
* Format release body to include detailed change log.

cmd/edit.go

@@ -21,7 +21,15 @@ func init() {
 func runEdit(cmd *cobra.Command, args []string) error {
 	editor := os.Getenv("EDITOR")
 	if editor == "" {
-		editor = "vi"
+		for _, e := range []string{"nvim", "nano", "vi"} {
+			if _, err := exec.LookPath(e); err == nil {
+				editor = e
+				break
+			}
+		}
+	}
+	if editor == "" {
+		return fmt.Errorf("no editor found; set $EDITOR")
 	}
 	c := exec.Command(editor, configPath)
 	c.Stdin = os.Stdin

cmd/syncup.go

@@ -31,6 +31,7 @@ func runSyncup(cmd *cobra.Command, args []string) error {
 	}
 
 	added := 0
+	unchanged := 0
 	discovered := map[string]bool{}
 
 	// Discover running containers across all runtimes
@@ -51,6 +52,8 @@ func runSyncup(cmd *cobra.Command, args []string) error {
 			if cfg.AddUnit(unit) {
 				fmt.Printf("  + added: %s (%s)\n", c.Name, c.Runtime)
 				added++
+			} else {
+				unchanged++
 			}
 		}
 	}
@@ -86,6 +89,6 @@ func runSyncup(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	fmt.Printf("\nDone. Added: %d  Disabled: %d  Re-enabled: %d\n", added, disabled, reenabled)
+	fmt.Printf("\nDone. Added: %d  Unchanged: %d  Disabled: %d  Re-enabled: %d\n", added, unchanged, disabled, reenabled)
 	return nil
 }