feat: stop container log capture on Docker die/oom events

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cameleer3-server-app/src/main/java/com/cameleer3/server/app/runtime/DockerEventMonitor.java

@@ -98,6 +98,10 @@ public class DockerEventMonitor {
                 }
                 replicas.set(i, updated);
                 changed = true;
+                // Stop log capture for this container — it's dead or stopped
+                if ("die".equals(action) || "oom".equals(action) || "stop".equals(action)) {
+                    runtimeOrchestrator.stopLogCapture(containerId);
+                }
                 break;
             }
         }