fix(gptchangelog): attribute contributors inline per bullet instead of trailing list

src/changelog/gptchangelog/action.yml

@@ -265,50 +265,36 @@ runs:
             VERSION=$(echo "$LAST_TAG" | sed 's/^v//')
           fi
 
-          TEMP_COMMITS=$(mktemp)
-
           if [ "$WORKING_DIR" != "." ]; then
-            git log --oneline "$SINCE".."$LAST_TAG" -- "$WORKING_DIR" > "$TEMP_COMMITS" 2>/dev/null || true
+            SHAS=$(git log "$SINCE".."$LAST_TAG" --format='%H' -- "$WORKING_DIR" 2>/dev/null)
           else
-            git log --oneline "$SINCE".."$LAST_TAG" > "$TEMP_COMMITS" 2>/dev/null || true
+            SHAS=$(git log "$SINCE".."$LAST_TAG" --format='%H' 2>/dev/null)
           fi
 
-          COMMIT_COUNT=$(wc -l < "$TEMP_COMMITS" | tr -d ' ')
+          COMMIT_COUNT=$(echo "$SHAS" | grep -c . || true)
           echo "📊 Found $COMMIT_COUNT commits for $APP_NAME"
 
           if [ "$COMMIT_COUNT" -eq 0 ]; then
             echo "⚠️ No commits found for $APP_NAME in range - skipping"
-            rm -f "$TEMP_COMMITS"
             continue
           fi
 
-          COMMITS_TEXT=$(cat "$TEMP_COMMITS")
-          rm -f "$TEMP_COMMITS"
-
-          if [ "$WORKING_DIR" != "." ]; then
-            SHAS=$(git log "$SINCE".."$LAST_TAG" --format='%H' -- "$WORKING_DIR" 2>/dev/null)
-          else
-            SHAS=$(git log "$SINCE".."$LAST_TAG" --format='%H' 2>/dev/null)
-          fi
-
-          USERNAMES_FILE=$(mktemp)
+          # Build annotated commit list: "short-hash subject [@author]"
+          # Each commit carries its author handle so GPT can attribute inline.
+          COMMITS_ANNOTATED=""
           for SHA in $SHAS; do
+            COMMIT_LINE=$(git log -1 --format='%h %s' "$SHA" 2>/dev/null || true)
             LOGIN=$(gh api "repos/${GITHUB_REPOSITORY}/commits/${SHA}" \
               --jq '.author.login // empty' 2>/dev/null || true)
             if [[ -n "$LOGIN" && "$LOGIN" != *"[bot]" ]]; then
-              echo "$LOGIN" >> "$USERNAMES_FILE"
+              COMMITS_ANNOTATED+="${COMMIT_LINE} [@${LOGIN}]"$'\n'
+            else
+              COMMITS_ANNOTATED+="${COMMIT_LINE}"$'\n'
             fi
           done
+          echo "📝 Annotated commits:"$'\n'"${COMMITS_ANNOTATED}"
 
-          if [ -s "$USERNAMES_FILE" ]; then
-            CONTRIBUTORS=$(sort -u "$USERNAMES_FILE" | sed 's/^/@/' | tr '\n' ', ' | sed 's/, $//')
-          else
-            CONTRIBUTORS=""
-          fi
-          rm -f "$USERNAMES_FILE"
-          echo "👥 Contributors: $CONTRIBUTORS"
-
-          PROMPT="Generate a changelog for ${APP_NAME} ONLY. Commits: ${COMMITS_TEXT} --- STRICT RULES: 1) NEVER mention other components - only ${APP_NAME}. 2) Use bullet points. 3) Group by Features, Fixes, Improvements (skip empty sections). 4) No markdown headers. 5) Max 5 bullet points. 6) End with Contributors: ${CONTRIBUTORS}. 7) ALWAYS wrap version references in backticks - this includes tag names (\`v1\`, \`v1.28.8\`, \`v2.0.0-beta.1\`), action refs (\`@v1\`, \`@v1.28.8\`), and any semver-like token. Never emit a bare version."
+          PROMPT="Generate a changelog for ${APP_NAME} ONLY. Each commit below includes the author handle in brackets. Commits: ${COMMITS_ANNOTATED} --- STRICT RULES: 1) NEVER mention other components - only ${APP_NAME}. 2) Use bullet points. 3) Group by Features, Fixes, Improvements (skip empty sections). 4) No markdown headers. 5) Max 5 bullet points. 6) For each bullet point add the GitHub handle(s) of the author(s) in parentheses at the end, e.g. 'Fix something important (@bedatty)'. If a bullet combines multiple commits, list all unique handles. Omit handles only when none were detected. 7) ALWAYS wrap version references in backticks - this includes tag names (\`v1\`, \`v1.28.8\`, \`v2.0.0-beta.1\`), action refs (\`@v1\`, \`@v1.28.8\`), and any semver-like token. Never emit a bare version."
 
           REQUEST_BODY=$(jq -n \
             --arg model "$OPENAI_MODEL" \