style(backend): apply dotnet format whitespace normalization

- Applied dotnet format to 24 files in backend/
- Corrects spacing, indentation, and formatting consistency
- No functional changes to code logic

Ultraworked with Sisyphus <https://github.com/code-yeongyu/oh-my-opencode>
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

backend/WorkClub.Api/Endpoints/Shifts/ShiftEndpoints.cs

@@ -56,7 +56,7 @@ public static class ShiftEndpoints
         ShiftService shiftService)
     {
         var result = await shiftService.GetShiftByIdAsync(id);
-        
+
         if (result == null)
             return TypedResults.NotFound();
 
@@ -75,7 +75,7 @@ public static class ShiftEndpoints
         }
 
         var (shift, error) = await shiftService.CreateShiftAsync(request, createdById);
-        
+
         if (error != null || shift == null)
             return TypedResults.BadRequest(error ?? "Failed to create shift");
 
@@ -93,7 +93,7 @@ public static class ShiftEndpoints
         {
             if (error == "Shift not found")
                 return TypedResults.NotFound();
-            
+
             if (isConflict)
                 return TypedResults.Conflict(error);
         }
@@ -106,7 +106,7 @@ public static class ShiftEndpoints
         ShiftService shiftService)
     {
         var deleted = await shiftService.DeleteShiftAsync(id);
-        
+
         if (!deleted)
             return TypedResults.NotFound();
 
@@ -130,10 +130,10 @@ public static class ShiftEndpoints
         {
             if (error == "Shift not found")
                 return TypedResults.NotFound();
-            
+
             if (error == "Cannot sign up for past shifts")
                 return TypedResults.UnprocessableEntity(error);
-            
+
             if (isConflict)
                 return TypedResults.Conflict(error!);
         }
@@ -158,7 +158,7 @@ public static class ShiftEndpoints
         {
             if (error == "Sign-up not found")
                 return TypedResults.NotFound();
-            
+
             return TypedResults.UnprocessableEntity(error!);
         }
 

backend/WorkClub.Api/Endpoints/Tasks/TaskEndpoints.cs

@@ -47,7 +47,7 @@ public static class TaskEndpoints
         TaskService taskService)
     {
         var result = await taskService.GetTaskByIdAsync(id);
-        
+
         if (result == null)
             return TypedResults.NotFound();
 
@@ -66,7 +66,7 @@ public static class TaskEndpoints
         }
 
         var (task, error) = await taskService.CreateTaskAsync(request, createdById);
-        
+
         if (error != null || task == null)
             return TypedResults.BadRequest(error ?? "Failed to create task");
 
@@ -84,10 +84,10 @@ public static class TaskEndpoints
         {
             if (error == "Task not found")
                 return TypedResults.NotFound();
-            
+
             if (isConflict)
                 return TypedResults.Conflict(error);
-            
+
             return TypedResults.UnprocessableEntity(error);
         }
 
@@ -99,7 +99,7 @@ public static class TaskEndpoints
         TaskService taskService)
     {
         var deleted = await taskService.DeleteTaskAsync(id);
-        
+
         if (!deleted)
             return TypedResults.NotFound();
 

backend/WorkClub.Api/Middleware/TenantValidationMiddleware.cs

@@ -19,7 +19,7 @@ public class TenantValidationMiddleware
             return;
         }
 
-        if (!context.Request.Headers.TryGetValue("X-Tenant-Id", out var tenantIdHeader) || 
+        if (!context.Request.Headers.TryGetValue("X-Tenant-Id", out var tenantIdHeader) ||
             string.IsNullOrWhiteSpace(tenantIdHeader))
         {
             context.Response.StatusCode = StatusCodes.Status400BadRequest;

backend/WorkClub.Api/Program.cs

@@ -84,7 +84,7 @@ var app = builder.Build();
 if (app.Environment.IsDevelopment())
 {
     app.MapOpenApi();
-    
+
     using var scope = app.Services.CreateScope();
     var seedService = scope.ServiceProvider.GetRequiredService<SeedDataService>();
     await seedService.SeedAsync();
@@ -113,7 +113,7 @@ var summaries = new[]
 
 app.MapGet("/weatherforecast", () =>
 {
-    var forecast =  Enumerable.Range(1, 5).Select(index =>
+    var forecast = Enumerable.Range(1, 5).Select(index =>
         new WeatherForecast
         (
             DateOnly.FromDateTime(DateTime.Now.AddDays(index)),

backend/WorkClub.Api/Services/MemberSyncService.cs

@@ -42,7 +42,7 @@ public class MemberSyncService
 
         var email = httpContext.User.FindFirst("email")?.Value ?? httpContext.User.FindFirst("preferred_username")?.Value ?? "unknown@example.com";
         var name = httpContext.User.FindFirst("name")?.Value ?? email.Split('@')[0];
-        
+
         var roleClaim = httpContext.User.FindFirst(System.Security.Claims.ClaimTypes.Role)?.Value ?? "Member";
         var clubRole = roleClaim.ToLowerInvariant() switch
         {

backend/WorkClub.Api/Services/ShiftService.cs

@@ -57,7 +57,7 @@ public class ShiftService
     public async Task<ShiftDetailDto?> GetShiftByIdAsync(Guid id)
     {
         var shift = await _context.Shifts.FindAsync(id);
-        
+
         if (shift == null)
             return null;
 
@@ -91,7 +91,7 @@ public class ShiftService
     public async Task<(ShiftDetailDto? shift, string? error)> CreateShiftAsync(CreateShiftRequest request, Guid createdById)
     {
         var tenantId = _tenantProvider.GetTenantId();
-        
+
         var shift = new Shift
         {
             Id = Guid.NewGuid(),
@@ -132,7 +132,7 @@ public class ShiftService
     public async Task<(ShiftDetailDto? shift, string? error, bool isConflict)> UpdateShiftAsync(Guid id, UpdateShiftRequest request)
     {
         var shift = await _context.Shifts.FindAsync(id);
-        
+
         if (shift == null)
             return (null, "Shift not found", false);
 
@@ -197,7 +197,7 @@ public class ShiftService
     public async Task<bool> DeleteShiftAsync(Guid id)
     {
         var shift = await _context.Shifts.FindAsync(id);
-        
+
         if (shift == null)
             return false;
 
@@ -212,7 +212,7 @@ public class ShiftService
         var tenantId = _tenantProvider.GetTenantId();
 
         var shift = await _context.Shifts.FindAsync(shiftId);
-        
+
         if (shift == null)
             return (false, "Shift not found", false);
 

backend/WorkClub.Api/Services/TaskService.cs

@@ -52,7 +52,7 @@ public class TaskService
     public async Task<TaskDetailDto?> GetTaskByIdAsync(Guid id)
     {
         var workItem = await _context.WorkItems.FindAsync(id);
-        
+
         if (workItem == null)
             return null;
 
@@ -73,7 +73,7 @@ public class TaskService
     public async Task<(TaskDetailDto? task, string? error)> CreateTaskAsync(CreateTaskRequest request, Guid createdById)
     {
         var tenantId = _tenantProvider.GetTenantId();
-        
+
         var workItem = new WorkItem
         {
             Id = Guid.NewGuid(),
@@ -111,7 +111,7 @@ public class TaskService
     public async Task<(TaskDetailDto? task, string? error, bool isConflict)> UpdateTaskAsync(Guid id, UpdateTaskRequest request)
     {
         var workItem = await _context.WorkItems.FindAsync(id);
-        
+
         if (workItem == null)
             return (null, "Task not found", false);
 
@@ -172,7 +172,7 @@ public class TaskService
     public async Task<bool> DeleteTaskAsync(Guid id)
     {
         var workItem = await _context.WorkItems.FindAsync(id);
-        
+
         if (workItem == null)
             return false;