fix deploy script: correct bun path, .htaccess api exclusion, U8 backend syntax

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

deploy.sh

@@ -72,6 +72,11 @@ rsync -az --delete packages/client/dist/ "$HOST:$STATIC_DIR/"
 ssh "$HOST" "cat > $STATIC_DIR/.htaccess << 'HTACCESS'
 RewriteEngine On
 RewriteBase /celebrate-esc/
+
+# Don't rewrite API requests — handled by web backend
+RewriteCond %{REQUEST_URI} ^/celebrate-esc/api [NC]
+RewriteRule . - [L]
+
 RewriteCond %{REQUEST_FILENAME} !-f
 RewriteCond %{REQUEST_FILENAME} !-d
 RewriteRule . index.html [L]
@@ -87,7 +92,7 @@ After=postgresql.service
 [Service]
 Type=simple
 WorkingDirectory=%h/services/celebrate-esc/server
-ExecStart=/home/serve/.local/share/mise/installs/bun/1.3.0/bin/bun run --env-file=../.env src/index.ts
+ExecStart=/usr/bin/bun run --env-file=../.env src/index.ts
 Restart=on-failure
 RestartSec=5
 
@@ -101,7 +106,7 @@ systemctl --user restart celebrate-esc.service"
 
 # ── 9. Set up web backend routing ────────────────────────────────────
 echo "→ configuring web backend routing..."
-ssh "$HOST" "uberspace web backend set /celebrate-esc/api --http --port $PORT --remove-prefix 2>/dev/null || true"
+ssh "$HOST" "uberspace web backend add /celebrate-esc/api PORT $PORT --remove-prefix --force 2>/dev/null || true"
 
 # ── 10. Verify ────────────────────────────────────────────────────────
 echo "→ verifying deployment..."