fix(deploy): improve SSH key handling and add debug output

.gitea/workflows/deploy.yml

@@ -109,20 +109,28 @@ jobs:
           set -e
           APP_DIR=/home/tyler/route-commerce
 
-          # Setup SSH key (secret contains multiline private key)
+          # Setup SSH key - write raw (no printf which can corrupt multi-line keys)
           mkdir -p ~/.ssh
-          printf '%s\n' "$SERVER_SSH_KEY" > ~/.ssh/id_ed25519
+          echo "$SERVER_SSH_KEY" > ~/.ssh/id_ed25519
           chmod 600 ~/.ssh/id_ed25519
+
+          # Verify key was written correctly
+          if ! grep -q "PRIVATE KEY" ~/.ssh/id_ed25519; then
+            echo "ERROR: SSH key not found or malformed. Check SERVER_SSH_KEY secret."
+            cat ~/.ssh/id_ed25519 || echo "File is empty"
+            exit 1
+          fi
+
           ssh-keyscan -H route.crispygoat.com >> ~/.ssh/known_hosts 2>/dev/null || true
 
-          # Test SSH connection
+          # Test SSH connection with verbose output for debugging
           echo "Testing SSH connection..."
-          ssh -o ConnectTimeout=15 -o StrictHostKeyChecking=no tyler@route.crispygoat.com "echo 'SSH OK' && hostname" || { echo "SSH FAILED - check SERVER_SSH_KEY secret"; exit 1; }
+          ssh -o ConnectTimeout=15 -o StrictHostKeyChecking=no -o LogLevel=VERBOSE tyler@route.crispygoat.com "echo 'SSH OK' && hostname" 2>&1 || { echo "SSH FAILED"; exit 1; }
 
           # Create app dir on server
           ssh tyler@route.crispygoat.com "mkdir -p $APP_DIR/.next $APP_DIR/public"
 
-          # Write production env file using printf (avoids heredoc quoting issues)
+          # Write production env file
           ENV_FILE=$(mktemp)
           {
             printf 'DATABASE_URL=%s\n' "$DATABASE_URL"