fix: update workflow name and enhance OpenAI request handling in AI PR Description

.github/workflows/pr-description.yml

@@ -1,4 +1,4 @@
-name: 🤖 AI PR Description Commenter (Safe JSON with PAT)
+name: 🤖 AI PR Description Commenter (100% Safe with jq)
 
 on:
   pull_request:
@@ -27,20 +27,21 @@ jobs:
         env:
           GH_TOKEN: ${{ secrets.GH_PERSONAL_TOKEN }}
 
-      - name: Generate PR Description with OpenAI (Safe JSON)
+      - name: Generate PR Description with OpenAI (Safe JSON with jq)
         run: |
-          ESCAPED_COMMITS=$(printf '%s\n' "${commits}" | jq -R . | jq -s -c 'join("\n")')
+          REQUEST_BODY=$(jq -n \
+            --arg model "gpt-4o" \
+            --arg content "Given the following commit messages:\n\n${commits}\n\nGenerate a clear and professional pull request description." \
+            '{
+              model: $model,
+              messages: [{ role: "user", content: $content }]
+            }'
+          )
 
           RESPONSE=$(curl -s https://api.openai.com/v1/chat/completions \
             -H "Authorization: Bearer $OPENAI_API_KEY" \
             -H "Content-Type: application/json" \
-            -d '{
-              "model": "gpt-4o",
-              "messages": [{
-                "role": "user",
-                "content": "Given the following commit messages:\n\n'"${ESCAPED_COMMITS}"'\n\nGenerate a clear and professional pull request description."
-              }]
-            }')
+            -d "$REQUEST_BODY")
 
           DESCRIPTION=$(echo "$RESPONSE" | jq -r '.choices[0].message.content')