fix(types): Socket.reload() now correctly expects { socket: handler } (#26291)

## Summary
- Fix type definition for `Socket.reload()` to match runtime behavior
- The runtime expects `{ socket: handler }` but types previously
accepted just `handler`

## Test plan
- [x] Added regression test `test/regression/issue/26290.test.ts`
- [x] Verified test passes with `bun bd test`

Fixes #26290

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Co-authored-by: Alistair Smith <hi@alistair.sh>

packages/bun-types/bun.d.ts

@@ -5679,7 +5679,7 @@ declare module "bun" {
      *
      * This will apply to all sockets from the same {@link Listener}. it is per socket only for {@link Bun.connect}.
      */
-    reload(handler: SocketHandler): void;
+    reload(options: Pick<SocketOptions<Data>, "socket">): void;
 
     /**
      * Get the server that created this socket
@@ -6022,7 +6022,7 @@ declare module "bun" {
     stop(closeActiveConnections?: boolean): void;
     ref(): void;
     unref(): void;
-    reload(options: Pick<Partial<SocketOptions>, "socket">): void;
+    reload(options: Pick<SocketOptions<Data>, "socket">): void;
     data: Data;
   }
   interface TCPSocketListener<Data = unknown> extends SocketListener<Data> {