fix(company-dashboard): Use effective company slug fallback and enhance role protection redirect

- Add effectiveSlug variable that uses currentCompany.slug as fallback when companySlug from params is undefined
- Update all sidebar navigation URLs to use effectiveSlug instead of companySlug for consistent routing
- Enhance company_members query to fetch related company slug data
- Add active status filter to company membership query for data integrity
- Improve student route redirect logic to use company slug when available, with fallback to generic company dashboard
- Prevents routing errors when companySlug parameter is missing from URL params

Author: akshay0611

app/dashboard/company/layout.tsx

@@ -185,13 +185,16 @@ function CompanyDashboardContent({
   }
 
   // Generate sidebar items with dynamic company slug
+  // Use currentCompany.slug as fallback when companySlug from params is undefined
+  const effectiveSlug = companySlug || currentCompany.slug
+  
   const sidebarItems: SidebarGroupType[] = [
     {
       title: 'Dashboard',
       items: [
         {
           title: 'Overview',
-          url: `/dashboard/company/${companySlug}`,
+          url: `/dashboard/company/${effectiveSlug}`,
           icon: LayoutDashboard,
         },
       ],
@@ -201,17 +204,17 @@ function CompanyDashboardContent({
       items: [
         {
           title: 'Events',
-          url: `/dashboard/company/${companySlug}/events`,
+          url: `/dashboard/company/${effectiveSlug}/events`,
           icon: Calendar,
         },
         {
           title: 'Hackathons',
-          url: `/dashboard/company/${companySlug}/hackathons`,
+          url: `/dashboard/company/${effectiveSlug}/hackathons`,
           icon: Trophy,
         },
         {
           title: 'Team',
-          url: `/dashboard/company/${companySlug}/team`,
+          url: `/dashboard/company/${effectiveSlug}/team`,
           icon: Users,
         },
       ],
@@ -221,7 +224,7 @@ function CompanyDashboardContent({
       items: [
         {
           title: 'Analytics',
-          url: `/dashboard/company/${companySlug}/analytics`,
+          url: `/dashboard/company/${effectiveSlug}/analytics`,
           icon: BarChart3,
         },
       ],
@@ -231,12 +234,12 @@ function CompanyDashboardContent({
       items: [
         {
           title: 'Company Settings',
-          url: `/dashboard/company/${companySlug}/settings`,
+          url: `/dashboard/company/${effectiveSlug}/settings`,
           icon: Settings,
         },
         {
           title: 'Subscription',
-          url: `/dashboard/company/${companySlug}/subscription`,
+          url: `/dashboard/company/${effectiveSlug}/subscription`,
           icon: CreditCard,
         },
       ],

lib/hooks/useRoleProtection.ts

@@ -20,11 +20,15 @@ export function useRoleProtection(requiredRole: 'student' | 'company_member') {
           return
         }
 
-        // Check if user is a company member (FIXED: changed from 'company_users' to 'company_members')
+        // Check if user is a company member and get their company slug
         const { data: companyMembership } = await supabase
           .from('company_members')
-          .select('id')
+          .select(`
+            id,
+            company:companies(slug)
+          `)
           .eq('user_id', user.id)
+          .eq('status', 'active')
           .maybeSingle()
 
         const isCompanyMember = !!companyMembership
@@ -39,7 +43,15 @@ export function useRoleProtection(requiredRole: 'student' | 'company_member') {
         } else if (requiredRole === 'student') {
           if (isCompanyMember) {
             // User is a company member trying to access student routes
-            router.push('/dashboard/company')
+            // Redirect to their company dashboard with the correct slug
+            const company = companyMembership.company as unknown as { slug: string } | null
+            const companySlug = company?.slug
+            if (companySlug) {
+              router.push(`/dashboard/company/${companySlug}`)
+            } else {
+              // Fallback if slug is not available
+              router.push('/dashboard/company')
+            }
             return
           }
         }