fix: rename workflow and update AI description generation method

.github/workflows/pr-description.yml

@@ -1,4 +1,4 @@
-name: 🤖 AI PR Description Generator (with Template)
+name: 🤖 AI PR Description Commenter (Safe Mode)
 
 on:
   pull_request:
@@ -37,7 +37,7 @@ jobs:
               "model": "gpt-4o",
               "messages": [{
                 "role": "user",
-                "content": "Given the following commit messages:\n\n'"${commits}"'\n\nFill only the \"## Description\" section in this pull request template:\n\n<!--\n  Thanks for contributing!\n\n  Provide a description of your changes below and a general summary in the title.\n-->\n\n## Jira Ticket\n\n[SP-0000](https://syncrow.atlassian.net/browse/SP-0000)\n\n## Description\n\n<!--- Describe your changes in detail -->\n\n## How to Test\n\n<!--- Describe the created APIs / Logic -->"
+                "content": "Given the following commit messages:\n\n'"${commits}"'\n\nGenerate a clear and professional pull request description."
               }]
             }')
 
@@ -49,8 +49,8 @@ jobs:
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
           commits: ${{ env.commits }}
 
-      - name: Update PR Body with AI Description
+      - name: Post AI Generated Description as Comment
         run: |
-          gh pr edit ${{ github.event.pull_request.number }} --body "${{ env.description }}"
+          gh pr comment ${{ github.event.pull_request.number }} --body "${{ env.description }}"
         env:
           GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}