v0.1.9

feat: Add retry logic for IP allocation in Runtime Extension

- Add waitForIPAllocation() with 25s timeout and 500ms polling
- Fix race condition: IPAM controller now has time to allocate IP
- Add ownerReference adoption for IPAddressClaim created by Runtime Extension
- Reconciler re-fetches Cluster after claim adoption to detect endpoint set by hook
- Better logging for IP allocation progress

Fixes issue where GeneratePatches hook returned error because IP wasn't
allocated immediately, causing ProxmoxCluster to be created without VIP.

Version: v0.1.9