fix(ui): project status convention, linked-order chip, diacritics, lazy dashboard

- PROJECT_STATUS added to documentStatus.ts (aktivni=info, dokonceny=success,
  zruseny=error — app convention); Projects/ProjectDetail local maps deleted;
  status Select derives its MenuItems from the shared map.
- ProjectDetail linked-order status now rendered via the received-order map
  (was the project map with zero key overlap → raw DB token).
- Cancelled label unified across received/issued orders in documentStatus.ts.
- 'Chyba pripojeni' → 'Chyba připojení' (Dashboard, AuthContext).
- Dashboard lazy-loaded like every other route — its 7 subcomponents leave
  the Login critical path.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

src/admin/context/AuthContext.tsx

@@ -253,7 +253,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
         return { success: false, error: data.error };
       } catch {
         const errorMsg =
-          "Chyba pripojeni. Zkontrolujte prosim pripojeni k internetu a zkuste to znovu.";
+          "Chyba připojení. Zkontrolujte prosím připojení k internetu a zkuste to znovu.";
         setError(errorMsg);
         return { success: false, error: errorMsg };
       }
@@ -311,7 +311,7 @@ export function AuthProvider({ children }: { children: ReactNode }) {
         setError(data.error);
         return { success: false, error: data.error };
       } catch {
-        const errorMsg = "Chyba pripojeni.";
+        const errorMsg = "Chyba připojení.";
         setError(errorMsg);
         return { success: false, error: errorMsg };
       }