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/server.ts

@@ -189,14 +189,14 @@ async function start() {
         app.log.error(err, "Invoice alert cron failed");
       }
     });
-    console.log("Invoice alert cron scheduled (daily 8:00)");
+    app.log.info("Invoice alert cron scheduled (daily 8:00)");
   }
 
   // --- Start ---
   const port = config.isProduction ? config.port : 3000;
   try {
     await app.listen({ port, host: config.host });
-    console.log(`Server running on http://${config.host}:${port}`);
+    app.log.info(`Server running on http://${config.host}:${port}`);
   } catch (err) {
     app.log.error(err);
     process.exit(1);