Fix entrypoint: dump Docker env vars to .env before config:cache

CapRover passes env vars as container environment, but Laravel's
config:cache reads from .env file. Must dump env to .env first,
then generate APP_KEY if missing.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker/entrypoint.sh

@@ -15,6 +15,16 @@ mkdir -p \
 chown -R www-data:www-data storage bootstrap/cache
 chmod -R 775 storage bootstrap/cache
 
+# Build .env from Docker env vars (CapRover passes them as container env)
+: > .env
+env | grep -E "^(APP_|DB_|LOG_|SESSION_|CACHE_|QUEUE_|FILESYSTEM_|BROADCAST_|MAIL_|TRUSTED_|BCRYPT_|PLATFORM_|ADMIN_|ACADEMY_|RUN_)" | sort | sed 's/=\(.*\)/="\1"/' >> .env
+
+# Auto-generate APP_KEY if not set
+if ! grep -q '^APP_KEY="base64:' .env 2>/dev/null; then
+    echo "==> Generating APP_KEY..."
+    php artisan key:generate --force --no-interaction
+fi
+
 # Create storage link if not exists
 if [ ! -L public/storage ]; then
     php artisan storage:link --no-interaction
@@ -29,6 +39,17 @@ php artisan event:cache
 # Run pending migrations
 php artisan migrate --force --no-interaction
 
+# First-deploy seeding (one-click install)
+if [ "$RUN_SEED_ON_FIRST_DEPLOY" = "true" ]; then
+    # Check if organizations table is empty (fresh install)
+    ACADEMY_COUNT=$(php artisan tinker --execute="echo \App\Domain\Shared\Models\Academy::count();" 2>/dev/null | tail -1)
+    if [ "$ACADEMY_COUNT" = "0" ] || [ -z "$ACADEMY_COUNT" ]; then
+        echo "==> Fresh install detected. Running initial setup..."
+        php artisan el-captain:setup --no-interaction
+        echo "==> Initial setup complete."
+    fi
+fi
+
 # Publish Livewire assets
 php artisan livewire:publish --assets 2>/dev/null || true