feat: introduce Teams & OKRs feature with models, types, and UI components for team management and objective tracking

src/components/layout/Header.tsx

@@ -39,6 +39,26 @@ export function Header() {
                 Mes Ateliers
               </Link>
 
+              {/* Objectives Link */}
+              <Link
+                href="/objectives"
+                className={`text-sm font-medium transition-colors ${
+                  isActiveLink('/objectives') ? 'text-primary' : 'text-muted hover:text-foreground'
+                }`}
+              >
+                🎯 Mes Objectifs
+              </Link>
+
+              {/* Teams Link */}
+              <Link
+                href="/teams"
+                className={`text-sm font-medium transition-colors ${
+                  isActiveLink('/teams') ? 'text-primary' : 'text-muted hover:text-foreground'
+                }`}
+              >
+                👥 Équipes
+              </Link>
+
               {/* Workshops Dropdown */}
               <div className="relative">
                 <button