feat: add GitHub workflow to generate CONTRIBUTORS.md

- Automatically generates contributors list from git history
- Updates on pushes to main branch
- Excludes email addresses for privacy
- Shows contributors by commit count and alphabetically

Author: Trozz

.github/workflows/contributors.yml

@@ -0,0 +1,75 @@
+name: Update Contributors (Git-based)
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    types: [closed]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+  pull-requests: write
+
+jobs:
+  update-contributors:
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push' || github.event_name == 'workflow_dispatch' || (github.event_name == 'pull_request' && github.event.pull_request.merged == true)
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Generate Contributors List
+        run: |
+          echo "# Contributors" > CONTRIBUTORS.md
+          echo "" >> CONTRIBUTORS.md
+          echo "Thank you to all our contributors! This file is automatically generated from git history." >> CONTRIBUTORS.md
+          echo "" >> CONTRIBUTORS.md
+
+          # Get all contributors sorted by number of commits
+          echo "## Contributors by Commits" >> CONTRIBUTORS.md
+          echo "" >> CONTRIBUTORS.md
+          git log --format='%aN' | sort | uniq -c | sort -rn | while read count name; do
+            echo "- **$name** - $count commits" >> CONTRIBUTORS.md
+          done
+
+          echo "" >> CONTRIBUTORS.md
+          echo "## All Contributors (Alphabetical)" >> CONTRIBUTORS.md
+          echo "" >> CONTRIBUTORS.md
+
+          # Get unique contributors alphabetically
+          git log --format='%aN' | sort -u | while read name; do
+            echo "- $name" >> CONTRIBUTORS.md
+          done
+
+          echo "" >> CONTRIBUTORS.md
+          echo "---" >> CONTRIBUTORS.md
+          echo "_Last updated: $(date -u +"%Y-%m-%d %H:%M:%S UTC")_" >> CONTRIBUTORS.md
+
+      - name: Check for changes
+        id: check_changes
+        run: |
+          if git diff --quiet CONTRIBUTORS.md; then
+            echo "changed=false" >> $GITHUB_OUTPUT
+          else
+            echo "changed=true" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Commit changes
+        if: steps.check_changes.outputs.changed == 'true'
+        run: |
+          git config --local user.email "github-actions[bot]@users.noreply.github.com"
+          git config --local user.name "github-actions[bot]"
+          git add CONTRIBUTORS.md
+          git commit -m "docs: update CONTRIBUTORS.md [skip ci]"
+
+      - name: Push changes
+        if: steps.check_changes.outputs.changed == 'true'
+        uses: ad-m/github-push-action@master
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          branch: ${{ github.ref }}