Show prisma db push errors in entrypoint, add .gitattributes for LF

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitattributes

@@ -0,0 +1,2 @@
+*.sh text eol=lf
+docker-entrypoint.sh text eol=lf

docker-entrypoint.sh

@@ -2,10 +2,23 @@
 set -e
 
 echo "Waiting for database..."
-until npx prisma db push --skip-generate 2>/dev/null; do
-  echo "Database not ready, retrying in 3s..."
+MAX_RETRIES=30
+RETRY=0
+
+while [ $RETRY -lt $MAX_RETRIES ]; do
+  if npx prisma db push --skip-generate 2>&1; then
+    echo "Database schema synced successfully."
+    break
+  fi
+  RETRY=$((RETRY + 1))
+  echo "Database not ready (attempt $RETRY/$MAX_RETRIES), retrying in 3s..."
   sleep 3
 done
 
-echo "Database schema synced. Starting server..."
+if [ $RETRY -ge $MAX_RETRIES ]; then
+  echo "ERROR: Could not connect to database after $MAX_RETRIES attempts."
+  exit 1
+fi
+
+echo "Starting server..."
 exec node server.js