feat: Add packaging and publishing scripts, update dependencies, and enhance .gitignore

.pypirc.example

@@ -0,0 +1,22 @@
+[distutils]
+index-servers =
+    forgejo
+
+[forgejo]
+# Forgejo PyPI Repository Configuration
+# Repository: https://your-forgejo-instance.com/api/packages/{username}/pypi
+# Documentation: https://docs.forgejo.org/en/latest/usage/packages/pypi/
+#
+# To use this file:
+# 1. Replace YOUR_FORGEJO_INSTANCE with your Forgejo URL
+# 2. Replace YOUR_USERNAME with your Forgejo username
+# 3. Replace YOUR_ACCESS_TOKEN with your Forgejo personal access token
+#    (Generate at: https://your-forgejo-instance.com/user/settings/applications)
+# 4. Keep this file secure (credentials inside!)
+#
+# WARNING: This file contains sensitive credentials.
+# Add to .gitignore to prevent accidental commits!
+
+repository = https://git.him-tools.de/api/packages/HIM-public/pypi/
+username = __token__
+password = YOUR_ACCESS_TOKEN