Module pause 

Pause state shared between the probe and the tray.

Stored as a single-line file at paths::paused_until_path():

• absent file → not paused
• file containing indefinite → paused with no end time
• file containing an RFC 3339 timestamp → paused until that instant

Both the probe (which honours the pause in its scheduler) and the tray (which writes the file when the user picks a duration) read and write through this module so the format stays in sync.

Enums

PauseState

Functions

read_pause_state

Read the current pause state from disk. Returns None when the file is missing, empty, or the timestamp has already elapsed (treated as “no longer paused”; callers may delete the stale file).

write_pause_state

Write the pause state to disk, or remove the file when None.