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

Dumps runtime env vars into .env so config:cache picks them up
instead of reading stale .env.example defaults.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker/entrypoint.sh

@@ -7,17 +7,16 @@ mkdir -p storage/framework/{cache/data,sessions,views} storage/logs bootstrap/ca
 chown -R www-data:www-data storage bootstrap/cache
 chmod -R 775 storage bootstrap/cache
 
-# Create .env file — Laravel needs it to exist but Docker env vars take priority
-if [ ! -f .env ]; then
-    echo "APP_KEY=" > .env
-fi
+# Write Docker env vars to .env so config:cache picks them up
+# This ensures runtime env vars from CapRover override .env.example defaults
+env | grep -E "^(APP_|DB_|LOG_|SESSION_|CACHE_|QUEUE_|FILESYSTEM_|BROADCAST_|MAIL_|CAPROVER_|PG_ADMIN_|SHARED_PG_|ELCAPTAIN_|TRUSTED_|BCRYPT_)" | sort > .env
 
-# Generate APP_KEY if not set via environment
+# Generate APP_KEY if not set
 if [ -z "$APP_KEY" ]; then
     php artisan key:generate --force --no-interaction
 fi
 
-# DO NOT cache config — Docker env vars must be read at runtime
+php artisan config:cache
 php artisan route:cache
 php artisan view:cache