fix: route all console.error through ErrorHandler for consistent tracking

Converted 35+ raw console.error calls to use ErrorHandler.logError() across
12 files. ErrorHandler provides structured logging, local error storage,
and error tracking integration.

Files:
- app-selector.js: 4 errors (fetch templates, port check, suggested port, deploy)
- globals.js: 2 errors (CSRF token get/add)
- service-credentials.js: 2 errors (save/clear credentials)
- totp-settings.js: 4 errors (TOTP setup, session duration, disable, AuthCard)
- notification-settings.js: 2 errors (load config, load history)
- setup-wizard.js: 2 errors (save config to server)
- progress-tracker.js: 4 errors (storage read/write/session/fallback)
- tooltip-definitions.js: 2 errors (validation, condition eval)
- tour-manager.js: 2 errors (Driver.js not loaded, tooltip not found)
- theme-adapter.js: 1 error (theme change callback)
- weather.js: 1 error (weather update)
- onboarding.js: removed duplicate console.error, fixed 2 remaining calls

All console.error calls in the DashCaddy frontend now go through ErrorHandler.

status/js/totp-settings.js

@@ -1,5 +1,6 @@
 // ===== TOTP SETTINGS =====
 (function() {
+  const errorHandler = new ErrorHandler();
   injectModal('totp-settings-modal', `<div id="totp-settings-modal" class="weather-modal">
     <div class="weather-modal-content" style="min-width: 420px; max-width: 520px;">
       <h3 style="margin: 0 0 16px; font-size: 1.1rem;">Authentication Settings</h3>
@@ -185,7 +186,7 @@
         document.getElementById('totp-setup-code').focus();
       }
     } catch (e) {
-      console.error('TOTP setup failed:', e);
+      errorHandler.logError('[TOTP] Setup Failed', e, { function: 'setupTOTP' });
     }
   });
 
@@ -274,7 +275,7 @@
       });
       loadTotpSettings(); // Refresh modal + card (handles "never" disabling TOTP)
     } catch (err) {
-      console.error('Failed to update session duration:', err);
+      errorHandler.logError('[TOTP] Update Session Duration', err, { function: 'updateSessionDuration' });
     }
   });
 
@@ -290,7 +291,7 @@
       const data = await res.json();
       if (data.success) loadTotpSettings();
     } catch (e) {
-      console.error('Failed to disable TOTP:', e);
+      errorHandler.logError('[TOTP] Disable Failed', e, { function: 'disableTOTP' });
     }
   });
 
@@ -322,7 +323,7 @@
         const active = data.config.enabled && data.config.isSetUp;
         updateAuthCard(active, data.config.sessionDuration);
       }
-    } catch (e) { console.error('[AuthCard] Failed to update:', e); }
+    } catch (e) { errorHandler.logError('[TOTP] AuthCard Update', e, { function: 'authCardUpdate' }); }
   })();
 
 })();