Add memory monitoring endpoint

allstarr/Controllers/AdminController.cs

@@ -8,6 +8,7 @@ using allstarr.Services.Common;
 using allstarr.Filters;
 using System.Text.Json;
 using System.Text.RegularExpressions;
+using System.Runtime;
 
 namespace allstarr.Controllers;
 
@@ -1901,6 +1902,52 @@ public class AdminController : ControllerBase
             return StatusCode(500, new { error = "Failed to import .env file", details = ex.Message });
         }
     }
+    
+    /// <summary>
+    /// Gets detailed memory usage statistics for debugging.
+    /// </summary>
+    [HttpGet("memory-stats")]
+    public IActionResult GetMemoryStats()
+    {
+        try
+        {
+            // Force garbage collection to get accurate numbers
+            GC.Collect();
+            GC.WaitForPendingFinalizers();
+            GC.Collect();
+
+            var memoryUsage = GC.GetTotalMemory(false);
+            var gen0 = GC.CollectionCount(0);
+            var gen1 = GC.CollectionCount(1);
+            var gen2 = GC.CollectionCount(2);
+            
+            // Get process memory info
+            var process = System.Diagnostics.Process.GetCurrentProcess();
+            
+            return Ok(new {
+                Timestamp = DateTime.UtcNow,
+                GCMemoryBytes = memoryUsage,
+                GCMemoryMB = Math.Round(memoryUsage / (1024.0 * 1024.0), 2),
+                ProcessWorkingSetBytes = process.WorkingSet64,
+                ProcessWorkingSetMB = Math.Round(process.WorkingSet64 / (1024.0 * 1024.0), 2),
+                ProcessPrivateMemoryBytes = process.PrivateMemorySize64,
+                ProcessPrivateMemoryMB = Math.Round(process.PrivateMemorySize64 / (1024.0 * 1024.0), 2),
+                ProcessVirtualMemoryBytes = process.VirtualMemorySize64,
+                ProcessVirtualMemoryMB = Math.Round(process.VirtualMemorySize64 / (1024.0 * 1024.0), 2),
+                GCCollections = new {
+                    Gen0 = gen0,
+                    Gen1 = gen1,
+                    Gen2 = gen2
+                },
+                GCMode = GCSettings.IsServerGC ? "Server" : "Workstation",
+                GCLatencyMode = GCSettings.LatencyMode.ToString()
+            });
+        }
+        catch (Exception ex)
+        {
+            return BadRequest(new { error = ex.Message });
+        }
+    }
 }
 
 public class ConfigUpdateRequest