feat: snooze permission events (5 / 15 min)

[hiskudin]

Summary

Defer a permission notification without resolving the underlying hook. The agent stays blocked on its FIFO; after the chosen duration, the banner re-fires so you get another chance to act on it.

How it works

• Banner — the PERMISSION UNNotificationCategory now has three actions: `Allow`, `Snooze 5 min`, `Snooze 15 min`. macOS shows `Allow` as the primary button and collapses the rest into the chevron expansion automatically.
• Panel — `S` snoozes the selected permission event for 5 min, `Shift+S` for 15. Footer hint appears when a permission event is selected.
• Re-fire — same `NudgeEvent` is preserved across snooze cycles (so the panel doesn't accumulate duplicate rows). The fresh banner uses a new `UNNotificationRequest` UUID; the original event id stays in `userInfo` so click handlers resolve to the same event + FIFO.
• Visual — snoozed rows render dimmed with a `moon.zzz` glyph; right-side timestamp swaps from "X min ago" to "snoozed in Xm".

Test plan

• Trigger a permission notification → banner shows Allow + chevron, expansion reveals Snooze 5/15
• Click Snooze 5 → banner dismisses; selected event in panel dims with moon icon and "snoozed in 5m"; agent stays blocked
• Wait 5 min → fresh banner appears; clicking Allow on it approves the original FIFO
• In the panel, press S on a selected permission event → same dimming behaviour
• Shift+S → same but 15 min
• Footer hint "Snooze S" appears only when a permission event is selected
• Stop events ignore S (no FIFO to wait on)

🤖 Generated with Claude Code