Add ore bag area pickups (#19358)

Content.Shared/Storage/Components/MagnetPickupComponent.cs

@@ -0,0 +1,36 @@
+using Content.Shared.Inventory;
+using Content.Shared.Tag;
+using Content.Shared.Whitelist;
+
+namespace Content.Server.Storage.Components;
+
+/// <summary>
+/// Applies an ongoing pickup area around the attached entity.
+/// </summary>
+[RegisterComponent]
+public sealed partial class MagnetPickupComponent : Component
+{
+    [ViewVariables(VVAccess.ReadWrite), DataField("nextScan")]
+    public TimeSpan NextScan = TimeSpan.Zero;
+
+    /// <summary>
+    /// What container slot the magnet needs to be in to work.
+    /// </summary>
+    [ViewVariables(VVAccess.ReadWrite), DataField("slotFlags")]
+    public SlotFlags SlotFlags = SlotFlags.BELT;
+
+    [ViewVariables(VVAccess.ReadWrite), DataField("range")]
+    public float Range = 1f;
+
+    [ValidatePrototypeId<TagPrototype>]
+    private const string DefaultTag = "Ore";
+
+    [ViewVariables(VVAccess.ReadWrite), DataField("whitelist")]
+    public EntityWhitelist? Whitelist = new()
+    {
+        Tags = new List<string>()
+        {
+            DefaultTag,
+        }
+    };
+}