fix(jobs): align table and board query contracts

JobTrackerApi/Controllers/JobApplicationsController.cs

@@ -478,6 +478,13 @@ Canonical profile:
             [FromQuery] string? sortDir = null,
             CancellationToken cancellationToken = default
         )
+            => await ReadJobsAsync(page, pageSize, q, status, companyId, location, needsFollowUp, readiness,
+                includeDeleted, deletedOnly, sortBy, sortDir, false, cancellationToken);
+
+        // One logical query; only the response projection/pagination differs between the two views.
+        private async Task<ActionResult> ReadJobsAsync(int page, int pageSize, string? q, string? status,
+            int? companyId, string? location, bool needsFollowUp, string? readiness, bool includeDeleted,
+            bool deletedOnly, string? sortBy, string? sortDir, bool board, CancellationToken cancellationToken)
         {
             if (page < 1) page = 1;
             if (pageSize is not (15 or 20 or 25)) pageSize = 15;
@@ -565,15 +572,18 @@ Canonical profile:
                     if (matchesFollowUp && matchesReadiness) filtered.Add(j);
                 }
 
-                filtered = key switch
+                var ordered = key switch
                 {
-                    "company" => dirDesc ? filtered.OrderByDescending(j => j.Company.Name).ToList() : filtered.OrderBy(j => j.Company.Name).ToList(),
-                    "jobTitle" => dirDesc ? filtered.OrderByDescending(j => j.JobTitle).ToList() : filtered.OrderBy(j => j.JobTitle).ToList(),
-                    "status" => dirDesc ? filtered.OrderByDescending(j => j.Status).ToList() : filtered.OrderBy(j => j.Status).ToList(),
-                    "location" => dirDesc ? filtered.OrderByDescending(j => j.Location).ToList() : filtered.OrderBy(j => j.Location).ToList(),
-                    "daysSince" => dirDesc ? filtered.OrderBy(j => j.DateApplied).ToList() : filtered.OrderByDescending(j => j.DateApplied).ToList(),
-                    _ => dirDesc ? filtered.OrderByDescending(j => j.DateApplied).ToList() : filtered.OrderBy(j => j.DateApplied).ToList(),
+                    "company" => dirDesc ? filtered.OrderByDescending(j => j.Company.Name) : filtered.OrderBy(j => j.Company.Name),
+                    "jobTitle" => dirDesc ? filtered.OrderByDescending(j => j.JobTitle) : filtered.OrderBy(j => j.JobTitle),
+                    "status" => dirDesc ? filtered.OrderByDescending(j => j.Status) : filtered.OrderBy(j => j.Status),
+                    "location" => dirDesc ? filtered.OrderByDescending(j => j.Location) : filtered.OrderBy(j => j.Location),
+                    "daysSince" => dirDesc ? filtered.OrderBy(j => j.DateApplied) : filtered.OrderByDescending(j => j.DateApplied),
+                    _ => dirDesc ? filtered.OrderByDescending(j => j.DateApplied) : filtered.OrderBy(j => j.DateApplied),
                 };
+                filtered = ordered.ThenBy(j => j.Id).ToList();
+
+                if (board) return Ok(filtered);
 
                 var totalCount = filtered.Count;
                 var pageItems = filtered.Skip((page - 1) * pageSize).Take(pageSize).ToList();
@@ -589,7 +599,7 @@ Canonical profile:
                 return Ok(new PagedResult<JobApplicationDto>(dtoItems, totalCount, page, pageSize));
             }
 
-            query = key switch
+            var orderedQuery = key switch
             {
                 "company" => dirDesc ? query.OrderByDescending(j => j.Company.Name) : query.OrderBy(j => j.Company.Name),
                 "jobTitle" => dirDesc ? query.OrderByDescending(j => j.JobTitle) : query.OrderBy(j => j.JobTitle),
@@ -599,6 +609,11 @@ Canonical profile:
                 "daysSince" => dirDesc ? query.OrderBy(j => j.DateApplied) : query.OrderByDescending(j => j.DateApplied),
                 _ => dirDesc ? query.OrderByDescending(j => j.DateApplied) : query.OrderBy(j => j.DateApplied),
             };
+            query = orderedQuery.ThenBy(j => j.Id);
+
+            // ponytail: existing full-array Board contract is O(N); use a separately designed
+            // server-paged/virtualized Board if account size makes this unsuitable. Never truncate.
+            if (board) return Ok(await query.ToListAsync(cancellationToken));
 
             var total = await query.CountAsync(cancellationToken);
 
@@ -648,22 +663,19 @@ Canonical profile:
         [HttpGet("board")]
         public async Task<ActionResult<List<JobApplication>>> GetBoard(
             [FromQuery] bool includeDeleted = false,
-            CancellationToken cancellationToken = default
+            CancellationToken cancellationToken = default,
+            [FromQuery] string? q = null,
+            [FromQuery] string? status = null,
+            [FromQuery] int? companyId = null,
+            [FromQuery] string? location = null,
+            [FromQuery] bool needsFollowUp = false,
+            [FromQuery] string? readiness = null,
+            [FromQuery] bool deletedOnly = false,
+            [FromQuery] string? sortBy = null,
+            [FromQuery] string? sortDir = "desc"
         )
-        {
-            var query = _db.JobApplications
-                .AsNoTracking()
-                .Include(j => j.Company)
-                .AsQueryable();
-
-            if (!includeDeleted) query = query.Where(j => !j.IsDeleted);
-
-            var items = await query
-                .OrderByDescending(j => j.DateApplied)
-                .ToListAsync(cancellationToken);
-
-            return Ok(items);
-        }
+            => await ReadJobsAsync(1, 15, q, status, companyId, location, needsFollowUp, readiness,
+                includeDeleted, deletedOnly, sortBy, sortDir, true, cancellationToken);
 
         [HttpGet("reminders")]
         public async Task<ActionResult<List<JobApplicationDto>>> GetReminders(