docs: add Sphinx documentation build and deploy workflow

- Add Gitea Actions workflow to build and deploy docs on push to main
- Generate Sphinx reference documentation for all apps and modules
- Deploy versioned and latest docs via rsync over SSH

docs/source/reference/apps/mcp_server/mcp_server.rst

@@ -0,0 +1,35 @@
+mcp\_server package
+===================
+
+.. automodule:: mcp_server
+   :members:
+   :show-inheritance:
+   :undoc-members:
+
+Subpackages
+-----------
+
+.. toctree::
+   :maxdepth: 4
+
+   mcp_server.api
+   mcp_server.management
+   mcp_server.tools
+
+Submodules
+----------
+
+.. toctree::
+   :maxdepth: 4
+
+   mcp_server.admin
+   mcp_server.apps
+   mcp_server.auth
+   mcp_server.context
+   mcp_server.forms
+   mcp_server.metrics
+   mcp_server.models
+   mcp_server.server
+   mcp_server.teams
+   mcp_server.urls
+   mcp_server.views