bastion: Default resource_port to 443 for managed clusters#2

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Copilot wants to merge 7 commits intomainfrom

copilot/fix-default-port-443

Commits on Jan 22, 2026

Initial plan
Copilot
committed
Add logic to default resource_port to 443 for managed clusters

Copilot
and
aavalang
committed
Fix _is_managed_cluster logic to use lowercase comparison

Copilot
and
aavalang
committed
Improve logic order and add validation for resource_port

Copilot
and
aavalang
committed
Add constant for default port and fix grammar in error message

Copilot
and
aavalang
committed
Use parentheses for string continuation instead of backslash

Copilot
and
aavalang
committed
Add integer validation for resource_port in non-IP connect scenarios

Copilot
and
aavalang
committed