Tabs component: The <x-ui.tabs> was creating its own x-data Alpine scope
which shadowed the parent's activeTab state, preventing tab clicks from
toggling panel visibility. Now detects slot mode (ComponentSlot) and skips
emitting x-data, letting the parent scope handle state.

Sidebar: Profile edit and dashboard pages had hardcoded href="#" links for
Projects, Campaigns, Messages, Portfolio. Replaced with the shared
creator-sidebar include that uses real routes. Also fixed dropdown profile/
settings links in the main layout.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>