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/library/library.services.rst

@@ -0,0 +1,25 @@
+library.services package
+========================
+
+.. automodule:: library.services
+   :members:
+   :show-inheritance:
+   :undoc-members:
+
+Submodules
+----------
+
+.. toctree::
+   :maxdepth: 4
+
+   library.services.chunker
+   library.services.concepts
+   library.services.daedalus_s3
+   library.services.embedding_client
+   library.services.fusion
+   library.services.parsers
+   library.services.pipeline
+   library.services.reranker
+   library.services.search
+   library.services.text_utils
+   library.services.vision