Fix Docker builds when livewire-tmp is root-owned.

Exclude whole storage trees from the build context, create cache dirs before dump-autoload, and drop Buildx-only cache mounts.

Dockerfile

@@ -9,8 +9,7 @@ WORKDIR /app
 
 COPY composer.json composer.lock ./
 
-RUN --mount=type=cache,target=/tmp/cache \
-    composer install \
+RUN composer install \
         --no-dev \
         --no-scripts \
         --no-autoloader \
@@ -18,7 +17,7 @@ RUN --mount=type=cache,target=/tmp/cache \
         --no-interaction
 
 # ---------------------------------------------------------------------------
-# npm ci only (parallel with vendor — does not wait on Composer)
+# npm ci only (parallel with vendor when BuildKit is available)
 # ---------------------------------------------------------------------------
 FROM node:22-bookworm AS npm
 
@@ -26,8 +25,7 @@ WORKDIR /app
 
 COPY package.json package-lock.json ./
 
-RUN --mount=type=cache,target=/root/.npm \
-    npm ci
+RUN npm ci
 
 # ---------------------------------------------------------------------------
 # Vite production build (needs Flux/Livewire + Laravel pagination views)
@@ -85,14 +83,14 @@ WORKDIR /app
 COPY --from=vendor /app/vendor ./vendor
 COPY composer.json composer.lock ./
 
-# Application source (.dockerignore excludes vendor, node_modules, public/build)
+# Application source (.dockerignore excludes vendor, node_modules, public/build, storage uploads)
 COPY . .
 
 # Built frontend assets
 COPY --from=assets /app/public/build ./public/build
 
-RUN composer dump-autoload --optimize --no-dev \
-    && mkdir -p \
+# Framework/view cache paths must exist before package:discover runs during dump-autoload
+RUN mkdir -p \
         storage/app/private \
         storage/app/public \
         storage/framework/cache \
@@ -101,6 +99,7 @@ RUN composer dump-autoload --optimize --no-dev \
         storage/logs \
         database \
         bootstrap/cache \
+    && composer dump-autoload --optimize --no-dev \
     && chown -R www-data:www-data storage bootstrap/cache database
 
 EXPOSE 80