Wire the snooze read into the Gatherer and honour it for reminders (#364)

The Gatherer now fills State.SnoozeUntil from store.SnoozedUntil instead
of nil, so a snooze finally reaches the gate. RemindDecisions gains the
one restraint check that applies to a reminder — quiet hours, presence
and cooldown are still bypassed, so "wake me 7" is unchanged. Reviewer:
the two tests in internal/loop/gate_test.go are the contract.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CGeSZxh1DCtRxmFVSYVGvJ

internal/loop/gather.go

@@ -119,6 +119,14 @@ func (g *Gatherer) GatherState(ctx context.Context, now time.Time) (State, []sto
 		return State{}, nil, err
 	}
 
+	// live snoozes — "leave me alone until X", per rule. The `snoozed` outcome
+	// on the nudges table is the whole record; the store turns it into an
+	// expiry. Absent rules mean "not snoozed", which is what the gate reads.
+	snoozeUntil, err := g.store.SnoozedUntil(ctx, now)
+	if err != nil {
+		return State{}, nil, err
+	}
+
 	// env flags — QuietHours / CalendarBusy as config facts.
 	// QuietHours: presence != reachability, sleep/quiet-hours handled separately
 	// in the gate. We read a config `quiet_hours` fact for the boolean.
@@ -150,7 +158,7 @@ func (g *Gatherer) GatherState(ctx context.Context, now time.Time) (State, []sto
 		PresenceScore: score,
 		Facts:         facts,
 		LastNudge:     lastNudge,
-		SnoozeUntil:   nil, // no snooze persistence yet — daemon wires in
+		SnoozeUntil:   snoozeUntil,
 		CooldownUntil: cooldownUntil,
 		QuietHours:    quiet,
 		CalendarBusy:  calBusy,