Keep zones ready when DNS record pruning fails

[gi8lino]

Problem

The Zone reconciler currently treats DNS record pruning as part of the Zone's readiness check. If the Cloudflare DNS Records API returns a transient error while listing or deleting records, the controller marks the entire Zone Ready=False.

DNSRecord reconciliation is gated on the Zone's Ready condition, so a temporary prune failure blocks every managed DNSRecord in that Zone even though:

• the Cloudflare account is valid;
• the Zone was resolved successfully;
• the Zone ID is available; and
• normal record reconciliation may still work.

This was observed with intermittent HTTP 522 responses from Cloudflare. A background cleanup failure therefore became a zone-wide reconciliation outage.

Solution

Separate Zone usability from the result of the optional pruning pass:

• Keep Ready=True after the account and current Zone ID have been validated.
• Report the latest pruning result through a new Pruned condition.
• Use PruneSucceeded and PruneFailed condition reasons.
• Continue requeueing at the configured retry interval when pruning fails.
• Remove a stale Pruned condition when pruning is disabled.
• Expose Pruned as an additional column in kubectl get zones.
• Regenerate the Zone CRD manifest.

Account lookup and Zone resolution errors still set Ready=False; only optional prune failures are treated as non-blocking.

Resulting behavior

Situation	Ready	Pruned
Pruning disabled	True	absent
Pruning succeeds	True	True
Pruning fails	True	False
Account or Zone resolution fails	False	unchanged/not applicable

This keeps managed DNS records reconciling during transient prune/API failures while preserving clear status visibility and automatic retries.

Validation

• go test ./internal/controller -run '^TestSetZoneReadyConditions$' -count=1
• go test ./... -run '^$' -count=1
• go vet ./...
• git diff --check
• Verified that the previous PruneReady name is absent from the codebase

[gi8lino]

forget this, better solve this by checking if a object is in deleting phase...