v0.4.22

• Two functions estimate window flow at a site with a short record or none (#120). wet_window_extend() extends a short record of window statistics from the nearest long-record donors that cover each year (OLS, MOVE.1 or a ratio of means), with an interval per year. wet_departure_carry() carries donors' log departures, each from the donor's own 1981–2010 mean, onto a site. scripts/departure_pilot.R chose OLS under a rule registered before any candidate existed, and found carried departures usable (median held-out NSE 0.63 on the Chinook migration-window mean, against 0.5 set in advance). At Maxan Creek (08EE018), extended to 1931–2024 from five gauged years, the spawning-window mean was 56 % lower in 2011–2025 than before 1981 (90 % interval −73 % to −28 %). The report is data/checks/departure_pilot_20260717.txt.