fix: default seasonal master gates to false so they don't auto-start on boot

- Halloween/Xmas/ThanksGiving/Valentine/Anniversary/Easter Enabled flags were true,

and seasonals are flag-gated ONLY (no date schedule), so ProcessWorldWide started

all six WorldWide instances immediately on every boot — regressing the legacy

dormant-by-default behaviour where a GM had to /createpve to turn one on

- Flip all six to false; seasonals now stay dormant until a GM runs /createpve

(ForceStartScheduled ignores the gate) or sets the flag true at runtime

- The scheduled wars (GWEnabled/CWEnabled/CPKEnabled) stay true: they have a weekly

schedule window too, so a true flag is harmlessly inert until the window opens —

the two-layer (flag AND window) gating the comment now documents

- Updated the comment to record the flag-only-vs-flag-and-window distinction