feat(kanban): Project Pipeline board with drag-and-drop, lead drawer, and full project view

- 44 mock leads across 7 stage columns + 2 bucket columns (Stuck, Follow-up) with seeded activity logs
- dnd-kit drag-and-drop: cross-column card movement, bucket logic, DragOverlay preview
- Campaign toast on stage drop: 20s countdown, Edit button opens message editor, auto-sends if ignored
- KanbanColumn: droppable zones, stage progress bar (position/total), column color accents, Add/Rename/Delete (Admin+Owner)
- KanbanCard: initials avatar, job type pill, insurance badge, assigned agent, days-in-stage counter, left color accent bar
- ColumnManagerModal: add/rename/delete stages with name, color picker, campaign message; delete blocked if leads exist
- LeadInfoDrawer: right slide-in with progress bar + stage steps, Details and Activity tabs, More Details CTA
- ActivityTimeline: color-coded entries (created/forward/regression/bucket), stage arrows, notes, agent + date
- LeadProjectPage: full project view at /*/leads/:leadId — progress bar, stage mover dropdown, info panels, full activity log, stats
- Routes: /*/kanban + /*/leads/:leadId for Owner, Admin, Field Agent
- Pipeline nav item added for all three roles

src/App.jsx

@@ -33,6 +33,8 @@ import CreateLeadPage from './pages/CreateLeadPage';
 import LeadsListPage from './pages/LeadsListPage';
 import LynkDispatchPage from './pages/LynkDispatchPage';
 import EstimatesPage from './pages/EstimatesPage';
+import KanbanPage from './pages/KanbanPage';
+import LeadProjectPage from './pages/LeadProjectPage';
 
 // ... (existing imports)
 const ProtectedRoute = ({ children, allowedRoles }) => {
@@ -110,6 +112,22 @@ function App() {
                 </ProtectedRoute>
               }
             />
+            <Route
+              path="/emp/fa/kanban"
+              element={
+                <ProtectedRoute allowedRoles={['FIELD_AGENT', 'ADMIN', 'OWNER']}>
+                  <KanbanPage />
+                </ProtectedRoute>
+              }
+            />
+            <Route
+              path="/emp/fa/leads/:leadId"
+              element={
+                <ProtectedRoute allowedRoles={['FIELD_AGENT', 'ADMIN', 'OWNER']}>
+                  <LeadProjectPage />
+                </ProtectedRoute>
+              }
+            />
             <Route
               path="/emp/fa/estimate"
               element={
@@ -180,6 +198,16 @@ function App() {
                 <EstimatesPage />
               </ProtectedRoute>
             } />
+            <Route path="/owner/kanban" element={
+              <ProtectedRoute allowedRoles={['OWNER']}>
+                <KanbanPage />
+              </ProtectedRoute>
+            } />
+            <Route path="/owner/leads/:leadId" element={
+              <ProtectedRoute allowedRoles={['OWNER']}>
+                <LeadProjectPage />
+              </ProtectedRoute>
+            } />
             <Route path="/owner/estimate" element={
               <ProtectedRoute allowedRoles={['OWNER']}>
                 <EstimateBuilder />
@@ -252,6 +280,22 @@ function App() {
                 </ProtectedRoute>
               }
             />
+            <Route
+              path="/admin/kanban"
+              element={
+                <ProtectedRoute allowedRoles={['ADMIN', 'OWNER']}>
+                  <KanbanPage />
+                </ProtectedRoute>
+              }
+            />
+            <Route
+              path="/admin/leads/:leadId"
+              element={
+                <ProtectedRoute allowedRoles={['ADMIN', 'OWNER']}>
+                  <LeadProjectPage />
+                </ProtectedRoute>
+              }
+            />
             <Route
               path="/admin/estimate"
               element={