fix(rflood): add liveness probe and raise memory limit to 4Gi

rtorrent periodically freezes blocking Flood's XMLRPC calls (activity-stream
and client/settings hang). Root causes: pieces.memory.max=1800M near the 2Gi
container limit; no liveness probe to trigger pod restart on hang.

- Liveness probe: exec rtxmlrpc system.time_seconds with 10s timeout; restart
  pod after 3 consecutive failures (every 30s check)
- Default memory limit raised from 2Gi to 4Gi

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

rflood/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: rflood
 description: rTorrent + Flood (hotio/rflood) Helm chart
 type: application
-version: 0.1.7
+version: 0.1.8
 appVersion: "release-0.16.12"
 annotations:
   version-source: ghcr-tags:hotio/rflood:^release-[0-9]+\.[0-9]+\.[0-9]+$

rflood/templates/deployment.yaml

@@ -55,6 +55,15 @@ spec:
               protocol: UDP
           resources:
             {{- toYaml .Values.resources | nindent 12 }}
+          {{- if .Values.livenessProbe.enabled }}
+          livenessProbe:
+            exec:
+              {{- toYaml .Values.livenessProbe.exec | nindent 14 }}
+            initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds }}
+            periodSeconds: {{ .Values.livenessProbe.periodSeconds }}
+            timeoutSeconds: {{ .Values.livenessProbe.timeoutSeconds }}
+            failureThreshold: {{ .Values.livenessProbe.failureThreshold }}
+          {{- end }}
           volumeMounts:
             - name: config
               mountPath: /config

rflood/values.yaml

@@ -29,7 +29,19 @@ resources:
     memory: "256Mi"
   limits:
     cpu: "2"
-    memory: "2Gi"
+    memory: "4Gi"
+
+livenessProbe:
+  enabled: true
+  exec:
+    command:
+      - /bin/sh
+      - -c
+      - "timeout 10 rtxmlrpc system.time_seconds > /dev/null 2>&1"
+  initialDelaySeconds: 60
+  periodSeconds: 30
+  timeoutSeconds: 15
+  failureThreshold: 3
 
 persistence:
   config: