release: Version 0.7.1

[pando85]

Release 0.7.1 (PATCH bump).

Changes since 0.7.0:

• fix(lb): capacity-safe rolling target replacement and UID-owned cleanup (fix(lb): capacity-safe rolling target replacement and UID-owned cleanup #70)
• fix: transparently adopt legacy Hetzner load balancers (fix: transparently adopt legacy Hetzner load balancers #71)
• refactor(lb): separate typed desired state from Hetzner executor
• refactor(controller): extract reconciliation and event responsibilities
• Multiple controller fixes (imports, formatting, Clippy policy)
• Controller reconciliation policy tests

Files changed:

• Cargo.toml: 0.7.0 → 0.7.1
• Cargo.lock: updated
• helm/Chart.yaml: version and appVersion → 0.7.1
• CHANGELOG.md: added 0.7.1 section