fix(firecrawl): Change Playwright probes from HTTP to TCP

Playwright service doesn't expose a health endpoint at /, causing HTTP
probes to fail with 404. Switch to tcpSocket probes which simply verify
the port is listening. Service is already confirmed running on port 3000.

cluster/applications/firecrawl/deployment-playwright.yaml

@@ -41,16 +41,14 @@ spec:
             - name: tmpfs
               mountPath: /tmp
           livenessProbe:
-            httpGet:
-              path: /
+            tcpSocket:
               port: 3000
             initialDelaySeconds: 30
             periodSeconds: 10
             timeoutSeconds: 5
             failureThreshold: 3
           readinessProbe:
-            httpGet:
-              path: /
+            tcpSocket:
               port: 3000
             initialDelaySeconds: 5
             periodSeconds: 5