feat: Expose TLS settings and example deploy with oauth-proxy (#112)

Signed-off-by: Michele Dolfi <dol@zurich.ibm.com>

docling_serve/settings.py

@@ -17,6 +17,9 @@ class UvicornSettings(BaseSettings):
     root_path: str = ""
     proxy_headers: bool = True
     timeout_keep_alive: int = 60
+    ssl_certfile: Optional[Path] = None
+    ssl_keyfile: Optional[Path] = None
+    ssl_keyfile_password: Optional[str] = None
     workers: Union[int, None] = None