Add host-based authentication, UTC timestamps, session management, and secure cookies; fix styling issues; refactor to remove module; update database schema for sessions and reset tokens.

pyproject.toml

@@ -18,6 +18,7 @@ dependencies = [
     "aiosqlite>=0.19.0",
     "uuid7-standard>=1.0.0",
     "pyjwt>=2.8.0",
+    "user-agents>=2.2.0",
 ]
 requires-python = ">=3.10"