fix(cli): replace one-liner with structured Rich panel in validation attach output

features/tool_cli.feature

@@ -215,7 +215,7 @@ Feature: Tool and Validation CLI commands
     Given a mocked validation exists for attaching
     When I run validation CLI attach "resource/r1" "local/test-val"
     Then the validation CLI attach should succeed
-    And the validation CLI output should contain "Attached validation"
+    And the validation CLI output should contain "Validation Attached"
 
   Scenario: Attach validation with project scope
     Given a mocked validation exists for attaching

src/cleveragents/cli/commands/validation.py

@@ -361,13 +361,24 @@ def attach(
             f"[bold]Resource:[/bold] {resource}"
         )
 
-        # Add scope if project is specified
+        # Add scope field
         if project:
             panel_content += f"\n[bold]Scope:[/bold] project {project}"
+        elif plan_id:
+            panel_content += f"\n[bold]Scope:[/bold] plan {plan_id}"
+        else:
+            panel_content += "\n[bold]Scope:[/bold] direct (always active)"
 
         # Display the structured panel
         console.print(Panel(panel_content, title="Validation Attached", expand=False))
 
+        # Add informational note for direct (unscoped) attachments
+        if not project and not plan_id:
+            console.print(
+                "[dim]This validation will run for ALL plans/projects"
+                " that access this resource.[/dim]"
+            )
+
         # Add success indicator
         console.print("[green]✓ OK Validation attached[/green]")