UI/UX audit fixes: clickable pipelines, broken links, isActive locking

- Make pipeline cards clickable on list page (navigate to detail view)
- Fix broken nav link: applicant /messages → /mentor
- Fix broken nav link: mentor /messages → /projects
- Add isActive field locking to all 7 wizard sections (intake, main-track,
  filtering, assignment, awards, live-finals, notifications)
- Add minLoad ≤ maxLoad cross-field validation in assignment section
- Add duplicate stage slug detection in main track section
- Add active pipeline warning banners in intake and main track sections

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/admin/pipeline/sections/awards-section.tsx

@@ -31,6 +31,7 @@ import type { RoutingMode, DecisionMode, AwardScoringMode } from '@prisma/client
 type AwardsSectionProps = {
   tracks: WizardTrackConfig[]
   onChange: (tracks: WizardTrackConfig[]) => void
+  isActive?: boolean
 }
 
 function slugify(name: string): string {
@@ -40,7 +41,7 @@ function slugify(name: string): string {
     .replace(/^-|-$/g, '')
 }
 
-export function AwardsSection({ tracks, onChange }: AwardsSectionProps) {
+export function AwardsSection({ tracks, onChange, isActive }: AwardsSectionProps) {
   const awardTracks = tracks.filter((t) => t.kind === 'AWARD')
   const nonAwardTracks = tracks.filter((t) => t.kind !== 'AWARD')
 
@@ -72,7 +73,7 @@ export function AwardsSection({ tracks, onChange }: AwardsSectionProps) {
         <p className="text-sm text-muted-foreground">
           Configure special award tracks that run alongside the main competition.
         </p>
-        <Button type="button" variant="outline" size="sm" onClick={addAward}>
+        <Button type="button" variant="outline" size="sm" onClick={addAward} disabled={isActive}>
           <Plus className="h-3.5 w-3.5 mr-1" />
           Add Award Track
         </Button>
@@ -100,6 +101,7 @@ export function AwardsSection({ tracks, onChange }: AwardsSectionProps) {
                     variant="ghost"
                     size="icon"
                     className="h-7 w-7 text-muted-foreground hover:text-destructive"
+                    disabled={isActive}
                   >
                     <Trash2 className="h-3.5 w-3.5" />
                   </Button>
@@ -129,6 +131,7 @@ export function AwardsSection({ tracks, onChange }: AwardsSectionProps) {
                 <Input
                   placeholder="e.g., Innovation Award"
                   value={track.awardConfig?.name ?? track.name}
+                  disabled={isActive}
                   onChange={(e) => {
                     const name = e.target.value
                     updateAward(index, {
@@ -151,6 +154,7 @@ export function AwardsSection({ tracks, onChange }: AwardsSectionProps) {
                       routingModeDefault: value as RoutingMode,
                     })
                   }
+                  disabled={isActive}
                 >
                   <SelectTrigger className="text-sm">
                     <SelectValue />
@@ -178,6 +182,7 @@ export function AwardsSection({ tracks, onChange }: AwardsSectionProps) {
                   onValueChange={(value) =>
                     updateAward(index, { decisionMode: value as DecisionMode })
                   }
+                  disabled={isActive}
                 >
                   <SelectTrigger className="text-sm">
                     <SelectValue />
@@ -203,6 +208,7 @@ export function AwardsSection({ tracks, onChange }: AwardsSectionProps) {
                       },
                     })
                   }
+                  disabled={isActive}
                 >
                   <SelectTrigger className="text-sm">
                     <SelectValue />