Move SealShare onto Livewire Material

Replaces maryUI and daisyUI with nonameweb/livewire-material: the Vibrant
indigo scheme, a system/light/dark theme under sealshare-theme, one top
app bar with the account menu, the upload drop zone and link-ready
moments, M3 fields, dialogs instead of wire:confirm, snackbars instead of
flashed messages, a sortable admin table, and the starter-kit cleanup.
Docker builds assets after Composer; CI drops the Flux step.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01V9NnLxnPp8vaaurb3Z1MFy

Dockerfile

@@ -1,20 +1,5 @@
 # ============================================
-# Stage 1: Build frontend assets
-# ============================================
-FROM node:24-alpine AS assets
-
-WORKDIR /app
-
-COPY package.json package-lock.json* ./
-RUN npm ci --prefer-offline
-
-COPY vite.config.js ./
-COPY resources/ ./resources/
-
-RUN npm run build
-
-# ============================================
-# Stage 2: Install PHP dependencies
+# Stage 1: Install PHP dependencies
 # ============================================
 FROM composer:2 AS vendor
 
@@ -33,6 +18,23 @@ COPY . .
 
 RUN composer dump-autoload --optimize --no-dev
 
+# ============================================
+# Stage 2: Build frontend assets
+# ============================================
+# After Composer: the stylesheet and script import Livewire Material from vendor/.
+FROM node:24-alpine AS assets
+
+WORKDIR /app
+
+COPY package.json package-lock.json* ./
+RUN npm ci --prefer-offline
+
+COPY vite.config.js ./
+COPY resources/ ./resources/
+COPY --from=vendor /app/vendor/nonameweb ./vendor/nonameweb
+
+RUN npm run build
+
 # ============================================
 # Stage 3: Production image (FrankenPHP/Octane)
 # ============================================