The attached number rides every cast path too

A number attached to SHIFT WAND silently stayed in hand: the two-stage
caster paths (shift-wand, teleport-opponent, mental-force) went through
withMods, which carried the modifier cards but not the separately-held
attached number. withMods now folds the number in wherever the call
site did not already carry it, so what the hand shows attached is what
the command carries — all of it, on every path.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015RCWSTnb1KYTPyL4GmhGnF

packages/web/src/App.svelte

@@ -423,9 +423,13 @@
     }
   }
 
-  /** Every targeted cast goes out through here so attachments never drop. */
+  /** Every targeted cast goes out through here so attachments never drop —
+   * the attached NUMBER included, unless the call site already carried it. */
   function withMods<T extends Parameters<typeof net.command>[0] & { type: "cast" }>(cmd: T): T {
     applyMods(cmd);
+    if (attachedNumber && !cmd.numberInstanceIds) {
+      cmd.numberInstanceIds = [attachedNumber.instanceId];
+    }
     return cmd;
   }