Add Alert Snooze Controls

[Mosas2000]

## Description

Let users snooze alerts temporarily from the UI without disabling the underlying rule.

## Requirements and context

- Snooze duration choices

• Resume time display

• Per-alert control

• Bulk snooze support

• Audit-friendly state

• Keyboard access

  Suggested execution

  Fork the repo and create a branch

  git checkout -b feature/frontend-alert-snooze

  Implement changes

  • Create alert snooze controls

• Hook controls into alert cards and lists

• Persist snooze state

• Document snooze behavior

  Example commit message

  feat: add alert snooze controls

  Guidelines

  • Assignment required before starting
  • PR must include a closing reference to this issue
  • Include screenshots or examples where applicable
  • Timeframe: 72 hours