Log employee and Trace offline sync and navigation events

Adds cache sync start, skip, success, and failure logs for employee RFID and meal/menu refreshes.

Logs full offline cache sync flow and meal schedule screen navigation.

Services/EmployeeRfidTagSyncService.cs

@@ -2,6 +2,7 @@ using Microsoft.EntityFrameworkCore;
 using MySqlConnector;
 using UtopiaCanteenSystem.Data;
 using UtopiaCanteenSystem.Models;
+using UtopiaCanteenSystem.Services.Logging;
 
 namespace UtopiaCanteenSystem.Services;
 
@@ -22,9 +23,12 @@ public class EmployeeRfidTagSyncService : IEmployeeRfidTagSyncService
 
   public async Task<EmployeeRfidTagSyncResult> SyncAllAsync(CancellationToken cancellationToken = default)
   {
+    FileLogger.Info("CacheSync", "Employee RFID sync started.");
+
     var connectionString = _configService.GetHrmsLookupConnectionString();
     if (string.IsNullOrWhiteSpace(connectionString))
     {
+      FileLogger.Warn("CacheSync", "Employee RFID sync skipped. MySQL connection string is not configured.");
       return new EmployeeRfidTagSyncResult
       {
         Success = false,
@@ -36,10 +40,12 @@ public class EmployeeRfidTagSyncService : IEmployeeRfidTagSyncService
     try
     {
       rows = await FetchAllFromHrmsAsync(connectionString, cancellationToken).ConfigureAwait(false);
+      FileLogger.Info("CacheSync", $"Employee RFID rows fetched from HRMS/UIND. RowsFetched={rows.Count}.");
     }
     catch (Exception ex)
     {
       Logger.Log(ex, "EmployeeRfidTagSyncService.SyncAllAsync");
+      FileLogger.Error("CacheSync", "Employee RFID sync failed while fetching from HRMS/UIND.", ex);
       return new EmployeeRfidTagSyncResult
       {
         Success = false,
@@ -85,6 +91,10 @@ public class EmployeeRfidTagSyncService : IEmployeeRfidTagSyncService
     await db.SaveChangesAsync(cancellationToken).ConfigureAwait(false);
     _configService.SetLastEmployeeRfidCacheSyncUtc(syncedAt);
 
+    FileLogger.Info(
+      "CacheSync",
+      $"Employee RFID sync completed. RowsFetched={rows.Count}, Upserted={upserted}.");
+
     return new EmployeeRfidTagSyncResult
     {
       Success = true,

Services/MealMenuCacheSyncService.cs

@@ -2,6 +2,7 @@ using Microsoft.EntityFrameworkCore;
 using MySqlConnector;
 using UtopiaCanteenSystem.Data;
 using UtopiaCanteenSystem.Models;
+using UtopiaCanteenSystem.Services.Logging;
 
 namespace UtopiaCanteenSystem.Services;
 
@@ -21,9 +22,12 @@ public class MealMenuCacheSyncService : IMealMenuCacheSyncService
 
     public async Task<MealMenuCacheSyncResult> SyncAllAsync(CancellationToken cancellationToken = default)
     {
+        FileLogger.Info("CacheSync", "Meal/menu cache sync started.");
+
         var connectionString = _configService.GetHrmsLookupConnectionString();
         if (string.IsNullOrWhiteSpace(connectionString))
         {
+            FileLogger.Warn("CacheSync", "Meal/menu sync skipped. MySQL connection string is not configured.");
             return new MealMenuCacheSyncResult
             {
                 Success = false,
@@ -49,6 +53,11 @@ public class MealMenuCacheSyncService : IMealMenuCacheSyncService
             await db.SaveChangesAsync(cancellationToken).ConfigureAwait(false);
             _configService.SetLastMealMenuCacheSyncUtc(syncedAt);
 
+            FileLogger.Info(
+                "CacheSync",
+                $"Meal/menu sync completed. MealSchedules={mealScheduleCount}, MenuWeeks={lunchWeekCount}, " +
+                $"MenuItems={lunchItemCount}, CatalogItems={menuItemCount}.");
+
             return new MealMenuCacheSyncResult
             {
                 Success = true,
@@ -61,6 +70,7 @@ public class MealMenuCacheSyncService : IMealMenuCacheSyncService
         catch (Exception ex)
         {
             Logger.Log(ex, "MealMenuCacheSyncService.SyncAllAsync");
+            FileLogger.Error("CacheSync", $"Meal/menu sync failed. Error={ex.Message}", ex);
             return new MealMenuCacheSyncResult
             {
                 Success = false,

Services/NavigationService.cs

@@ -1,5 +1,7 @@
 using UtopiaCanteenSystem.ViewModels;
 
+using UtopiaCanteenSystem.Services.Logging;
+
 namespace UtopiaCanteenSystem.Services;
 
 /// <summary>
@@ -105,6 +107,7 @@ public class NavigationService : INavigationService
             NavigateToAdminLogin();
             return;
         }
+        FileLogger.Info("ClientNav", "Meal Schedules screen opened.");
         CurrentViewModel = _mealSchedulesVm();
     }
 

Services/OfflineCacheSyncService.cs

@@ -1,3 +1,5 @@
+using UtopiaCanteenSystem.Services.Logging;
+
 namespace UtopiaCanteenSystem.Services;
 
 public class OfflineCacheSyncService : IOfflineCacheSyncService
@@ -15,9 +17,12 @@ public class OfflineCacheSyncService : IOfflineCacheSyncService
 
     public async Task<OfflineCacheSyncResult> SyncEmployeeAndMenuCacheAsync(CancellationToken cancellationToken = default)
     {
+        FileLogger.Info("CacheSync", "Full offline cache sync started (employee RFID + meal/menu).");
+
         var employeeResult = await _employeeRfidTagSync.SyncAllAsync(cancellationToken).ConfigureAwait(false);
         if (!employeeResult.Success)
         {
+            FileLogger.Error("CacheSync", $"Full cache sync failed at employee RFID step. Error={employeeResult.ErrorMessage}");
             return new OfflineCacheSyncResult
             {
                 Success = false,
@@ -29,6 +34,7 @@ public class OfflineCacheSyncService : IOfflineCacheSyncService
         var mealMenuResult = await _mealMenuCacheSync.SyncAllAsync(cancellationToken).ConfigureAwait(false);
         if (!mealMenuResult.Success)
         {
+            FileLogger.Error("CacheSync", $"Full cache sync failed at meal/menu step. Error={mealMenuResult.ErrorMessage}");
             return new OfflineCacheSyncResult
             {
                 Success = false,
@@ -38,6 +44,8 @@ public class OfflineCacheSyncService : IOfflineCacheSyncService
             };
         }
 
+        FileLogger.Info("CacheSync", "Full offline cache sync completed successfully.");
+
         return new OfflineCacheSyncResult
         {
             Success = true,