feat: implement permissions and actions management

- Add permissions logic for status options in corrective actions.
- Create tests for permissions functionality.
- Implement queries for user authentication and actions management.
- Develop Actions page to display and manage corrective actions.
- Create authentication pages for login, setup, and password reset.
- Add IncidentDetail page to view incident details and associated actions.
- Implement Settings page for user management and password changes.

src/components/MetricCard.tsx

@@ -4,7 +4,7 @@ import { toneClasses, type Tone } from '../lib/tones'
 interface MetricCardProps {
   label: string
   value: string
-  delta: string
+  delta?: string
   icon: LucideIcon
   tone: Tone
 }
@@ -17,9 +17,7 @@ export function MetricCard({ label, value, delta, icon: Icon, tone }: MetricCard
       </div>
       <span className="mt-2.5 mb-1.5 block text-xs text-muted sm:mt-[15px]">{label}</span>
       <strong className="block font-display text-[25px] font-semibold tracking-[-1px] text-ink sm:text-[30px]">{value}</strong>
-      <small className="mt-[9px] block text-[9px] text-[#7d8b86] sm:text-2xs">
-        <b className="text-positive">↗</b> {delta}
-      </small>
+      {delta && <small className="mt-[9px] block text-[9px] text-[#7d8b86] sm:text-2xs">{delta}</small>}
     </div>
   )
 }