refactor(creator-studio): move taxonomy to the settings card, slim the drawer to pay

Classification belongs next to everything else the author decides before
publishing, and the drawer should only configure paid resources.

- PublishSettings now renders categories, tags and custom taxonomy
  dimensions first, then cover, paid content and scheduling. Chips use a
  stacked row layout so long category lists wrap naturally.
- PublishDrawer keeps only PayPanel: taxonomy, save/publish buttons and the
  now-unused props are gone, leaving a single 完成 button.
- New PublishDialog takes over the publish action from the bottom bar, and
  with it the captcha mount point, so the gate still renders somewhere the
  author can see it.
- Promotes .jio-creator-primary / .jio-creator-ghost out of the dialog-only
  rules (drawer and pay panel buttons had no styling), and drops the dead
  .jio-creator-field / .jio-creator-cover blocks.

Contracts updated; 886 widget-system tests pass.

assets/creator-studio/build/index.asset.php

@@ -1 +1 @@
-<?php return array('dependencies' => array('react', 'wp-element', 'wp-i18n'), 'version' => '099f95cc60dffc7455f7');
+<?php return array('dependencies' => array('react', 'wp-element', 'wp-i18n'), 'version' => '16333cda79ebcc6962cd');