fix(action): restore proper YAML structure for inputs

- system-prompt-file now has description/required/default attributes
- persona-file no longer has duplicate description keys
- Fixes YAML parsing that was breaking existing users

.gitea/actions/review/action.yml

@@ -71,6 +71,9 @@ inputs:
     required: false
     default: 'true'
   system-prompt-file:
+    description: 'Local file with additional system prompt instructions (e.g. security review focus)'
+    required: false
+    default: ''
   persona:
     description: 'Built-in persona name (security, architect, docs)'
     required: false
@@ -79,9 +82,6 @@ inputs:
     description: 'Path to persona JSON file with custom review focus'
     required: false
     default: ''
-    description: 'Local file with additional system prompt instructions (e.g. security review focus)'
-    required: false
-    default: ''
 
 runs:
   using: 'composite'