Add GitHub Actions workflow for automated releases

Introduces a release workflow that triggers on pushes to main. The workflow extracts the version from pyproject.toml, ensures unique version tags, and creates a GitHub release using softprops/action-gh-release.

.github/workflows/release.yml

@@ -0,0 +1,48 @@
+name: Auto Release with Version Patch
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v4
+
+      - name: Extract base version from pyproject.toml
+        id: version
+        run: |
+          base=$(grep '^version *= *"' pyproject.toml | sed -E 's/version *= *"([^"]+)"/\1/')
+          echo "base_version=$base" >> $GITHUB_OUTPUT
+
+      - name: Determine unique version tag
+        id: unique_tag
+        run: |
+          BASE="v${{ steps.version.outputs.base_version }}"
+          TAG=$BASE
+          COUNT=0
+
+          # Fetch remote tags
+          git fetch --tags
+
+          while git rev-parse "$TAG" >/dev/null 2>&1; do
+            COUNT=$((COUNT + 1))
+            TAG="$BASE.$COUNT"
+          done
+
+          echo "final_tag=$TAG" >> $GITHUB_OUTPUT
+
+      - name: Create GitHub Release
+        uses: softprops/action-gh-release@v1
+        with:
+          tag_name: ${{ steps.unique_tag.outputs.final_tag }}
+          name: Release ${{ steps.unique_tag.outputs.final_tag }}
+          body: |
+            📦 Release based on pyproject.toml version `${{ steps.version.outputs.base_version }}`
+            🔁 Auto-postfix to avoid duplicate tag: `${{ steps.unique_tag.outputs.final_tag }}`
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}