fix(code-runtime-python): suppress the unnecessary-optional-chain lint for the stdin destroy

The boot-write-failure fake child carries no stdin at runtime, so the optional
call is the documented guard; the static type (ChildProcessWithoutNullStreams)
says stdin is non-null, which trips the no-unnecessary-condition lint.

packages/code-runtime/code-runtime-python/src/index.ts

@@ -995,6 +995,7 @@ export class PythonCodeRuntime extends CodeRuntime {
       // inheriting fd 0 would keep the host process from exiting even after the
       // closeDeadline forced settlement. The child (and any descendant) reads
       // EOF on fd 0 instead, and no host handle survives.
+      // oxlint-disable-next-line typescript/no-unnecessary-condition -- the boot-write-failure fake child has no stdin.
       child.stdin?.destroy()
     } catch (error: unknown) {
       try {