🚀 ci: add PyPI trusted publishing workflow

Publishes to PyPI on GitHub Release via trusted publisher (no API token).
Requires one-time setup at pypi.org/manage/account/publishing/.

Author: Mahmood Mohammed Seoud

.github/workflows/pypi-publish.yml

@@ -0,0 +1,26 @@
+name: Publish to PyPI
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write  # Trusted publisher — no API token needed
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Build package
+        run: |
+          pip install build
+          python -m build
+
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1