feat(estimate): refine layout, add full view modal, update table columns, and remove reference images

src/App.jsx

@@ -23,6 +23,7 @@ import PlaceholderDashboard from './pages/PlaceholderDashboard';
 import ProCanvas from './pages/ProCanvas';
 import ProjectList from './pages/contractor/ProjectList';
 import AiAssistantPage from './pages/AiAssistantPage';
+import EstimateBuilder from './pages/EstimateBuilder';
 // New Dashboards
 import VendorDashboard from './pages/vendor/VendorDashboard';
 import VendorOrders from './pages/vendor/VendorOrders';
@@ -97,6 +98,14 @@ function App() {
                 </ProtectedRoute>
               }
             />
+            <Route
+              path="/emp/fa/estimate"
+              element={
+                <ProtectedRoute allowedRoles={['FIELD_AGENT', 'ADMIN', 'OWNER']}>
+                  <EstimateBuilder />
+                </ProtectedRoute>
+              }
+            />
             {/* Owner Routes */}
             <Route path="/owner/snapshot" element={
               <ProtectedRoute allowedRoles={['OWNER']}>
@@ -138,6 +147,11 @@ function App() {
                 <ProCanvas />
               </ProtectedRoute>
             } />
+            <Route path="/owner/estimate" element={
+              <ProtectedRoute allowedRoles={['OWNER']}>
+                <EstimateBuilder />
+              </ProtectedRoute>
+            } />
 
             {/* Protected Admin Routes — Owner has full admin access */}
             <Route
@@ -181,6 +195,14 @@ function App() {
                 </ProtectedRoute>
               }
             />
+            <Route
+              path="/admin/estimate"
+              element={
+                <ProtectedRoute allowedRoles={['ADMIN', 'OWNER']}>
+                  <EstimateBuilder />
+                </ProtectedRoute>
+              }
+            />
 
             {/* Contractor Routes */}
             <Route path="/contractor/dashboard" element={