Three usability-audit findings in Settings:
- An unparseable PowerUse window (e.g. "9:0") used to save silently as null
(= round the clock), the opposite of what the typo implied. Validate() now
rejects an unparseable start/end unless blank; the worker-side read-time
tolerance is unchanged.
- "Effort" column header gets a tooltip explaining it's the model's reasoning
effort (cost/depth tradeoff).
- The "Prime Claude" tab gets a tooltip explaining scheduled Claude runs
(Ping / Fill My Day / custom prompt).
New locale keys added to en+de. Updated the PowerUse round-trip test that
asserted the old silent-normalize behavior.