Add admin/components.css with custom admin-* component classes replacing
all DaisyUI component usage across admin LiveViews, auth pages, layout,
and core_components. Delete daisyui.js vendor file (246KB). Theme plugin
stays for color variables until Phase 7.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Consolidates admin_live/, theme_live/, provider_live/ into admin/
(with theme/ and providers/ subdirs). Renames shop_live/ to shop/
and user_live/ to auth/. Updates all module names, router refs,
test files, CSS source paths, and dialyzer ignore.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
