This commit introduces a new magic link authentication flow.
The desktop client can now request a temporary, one-time-use token from
the server.
This token is then used to open a URL in the system browser, which
redirects to the server.
The server consumes the token, installs a regular web session, and
redirects the user
Introduce `last_recording_at` to `OnelinerEntry` and use it as the
primary sort key for cases. This ensures that cases with recent
dictation activity are prioritized, even if their initial creation date
is older.
The logic for determining a case's activity has been updated to consider
the most recent `.m4a` file's modification time (`last_recording_at`),
falling back to `updated_at` or `created_at` if necessary.
This change also refactors the timestamp formatting and handling within
the web interface to correctly display and sort cases based on their
actual last activity time, improving user experience and data relevance.
The `now_rfc3339` function is updated to strip sub-second precision for
consistent filename generation.
Brummel