feat: system settings, dynamic logos, template numbering, permission consolidation

- System settings page with tabs: Security, System, Firma
- Configurable attendance rules (break thresholds, rounding) from DB
- Configurable document numbering with template patterns ({YYYY}/{PREFIX}/{NNN})
- Dynamic logo upload (light/dark variants) served from DB instead of static files
- Email settings (SMTP from/name, alert/leave emails) configurable in UI
- Currency and VAT rate lists configurable, used across all modules
- Permissions simplified: offers.settings + settings.roles + settings.security → settings.manage
- Leaflet bundled locally, removed unpkg.com from CSP
- Silent catch blocks fixed with proper logging
- console.log replaced with app.log.info in server.ts
- Schema renamed: company-settings.schema → settings.schema
- App info section: version, Node.js, uptime, memory, DB status, NAS status

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/admin/AdminApp.tsx

@@ -32,7 +32,6 @@ const Offers = lazy(() => import("./pages/Offers"));
 const OfferDetail = lazy(() => import("./pages/OfferDetail"));
 const OffersCustomers = lazy(() => import("./pages/OffersCustomers"));
 const OffersTemplates = lazy(() => import("./pages/OffersTemplates"));
-const CompanySettings = lazy(() => import("./pages/CompanySettings"));
 const Orders = lazy(() => import("./pages/Orders"));
 const OrderDetail = lazy(() => import("./pages/OrderDetail"));
 const Projects = lazy(() => import("./pages/Projects"));
@@ -91,7 +90,6 @@ export default function AdminApp() {
                 <Route path="offers/:id" element={<OfferDetail />} />
                 <Route path="offers/customers" element={<OffersCustomers />} />
                 <Route path="offers/templates" element={<OffersTemplates />} />
-                <Route path="company/settings" element={<CompanySettings />} />
                 <Route path="orders" element={<Orders />} />
                 <Route path="orders/:id" element={<OrderDetail />} />
                 <Route path="projects" element={<Projects />} />