fix(homarr): patch probes via PostSync hook

Chart v8.23.0 (homarr-labs/charts) doesn't support probe customization.
All attempts failed:
- probes.liveness.spec: ignored
- controller.probes: ignored
- livenessProbe.enabled: ignored

Solution: PostSync hook Job patches deployment after Helm sync.

Probe config:
- Liveness: 60s initial, 30s period, 5s timeout
- Readiness: 45s initial, 15s period, 5s timeout

App needs 30-45s for DB migrations, Redis, icon cache (27k+ icons).

k8s/applications/homarr/homarr-values.yaml

@@ -1,5 +1,5 @@
-# Homarr landing page
-# Chart version: 8.23.0 from homarr-labs/charts
+# Homarr landing page - minimal config
+# Probes patched via PostSync hook (chart doesn't support customization)
 
 image:
   repository: ghcr.io/homarr-labs/homarr
@@ -8,26 +8,6 @@ image:
 
 replicaCount: 1
 
-# Override probe timing - app needs 30-45s to fully initialize
-controller:
-  probes:
-    liveness:
-      enabled: true
-      custom: false
-      spec:
-        initialDelaySeconds: 60
-        periodSeconds: 30
-        timeoutSeconds: 5
-        failureThreshold: 3
-    readiness:
-      enabled: true
-      custom: false
-      spec:
-        initialDelaySeconds: 45
-        periodSeconds: 15
-        timeoutSeconds: 5
-        failureThreshold: 3
-
 tolerations:
   - key: node-role.kubernetes.io/control-plane
     operator: Exists