Compute memory/ephemeral-storage limits from requests, drop default CPU limits

Every chart now renders its container resources through a duplicated
_helpers.tpl helper (reference implementation in template-chart): requests
ship as chart defaults, missing memory and ephemeral-storage limits are
computed as resources.limitFactor x the request (default 3, satisfactory
keeps 2 to preserve its previously published 8Gi limit), an explicitly set
limit always wins, and a CPU limit is only rendered when set explicitly.
Fixed limit defaults are removed from all values.yaml files; teamspeak-server
gains a values-driven resources block instead of hardcoded template values.
Major version bump for all published charts.

patchmon/templates/patchmon-backend.deployment.yaml

@@ -159,10 +159,8 @@ spec:
             periodSeconds: 10
             timeoutSeconds: 5
             failureThreshold: 30
-          {{- with .Values.patchmon.backend.resources }}
           resources:
-            {{ toYaml . | nindent 12 }}
-          {{- end }}
+            {{- include "patchmon.resources" .Values.patchmon.backend.resources | nindent 12 }}
           volumeMounts:
             - mountPath: /app/assets
               name: patchmon-volume