AEB-71: Added 3D navigation in monitoring zones

frontend/app/api/get-objects/route.ts

@@ -23,11 +23,32 @@ export async function GET(req: NextRequest) {
           headers: { 'Content-Type': 'application/json' },
           body: JSON.stringify({ refresh: refreshToken }),
         })
+        
         if (refreshRes.ok) {
           const refreshed = await refreshRes.json()
           accessToken = refreshed.access
+        } else {
+          const errorText = await refreshRes.text()
+          let errorData: { error?: string; detail?: string; code?: string } = {}
+          try {
+            errorData = JSON.parse(errorText)
+          } catch {
+            errorData = { error: errorText }
+          }
+           
+          const errorMessage = (errorData.error as string) || (errorData.detail as string) || ''
+          if (typeof errorMessage === 'string' && 
+              (errorMessage.includes('Token is expired') || 
+               errorMessage.includes('expired') || 
+               errorData.code === 'token_not_valid')) {
+            console.warn('Refresh token expired, user needs to re-authenticate') 
+          } else {
+            console.error('Token refresh failed:', errorData.error || errorData.detail || 'Unknown error')
+          }
         }
-      } catch {}
+      } catch (error) {
+        console.error('Error during token refresh:', error)
+      }
     }
 
     if (!accessToken) {
@@ -52,7 +73,21 @@ export async function GET(req: NextRequest) {
     let payload: any
     try { payload = JSON.parse(payloadText) } catch { payload = payloadText }
 
-    if (!objectsRes.ok) {
+    if (!objectsRes.ok) { 
+      if (payload && typeof payload === 'object') {
+        if (payload.code === 'token_not_valid' || 
+            (payload.detail && typeof payload.detail === 'string' && (payload.detail.includes('Token is expired') || payload.detail.includes('Given token not valid'))) ||
+            (payload.messages && Array.isArray(payload.messages) && payload.messages.some((msg: any) => 
+              msg.message && typeof msg.message === 'string' && msg.message.includes('Token is expired')
+            ))) {
+          console.warn('Access token expired, user needs to re-authenticate')
+          return NextResponse.json({ 
+            success: false, 
+            error: 'Authentication required - please log in again' 
+          }, { status: 401 })
+        }
+      }
+      
       const err = typeof payload === 'string' ? payload : JSON.stringify(payload)
       return NextResponse.json({ success: false, error: `Backend objects error: ${err}` }, { status: objectsRes.status })
     }