[tmpnet] s/Network.ChainConfigs/Network.PrimaryChainConfigs/

[maru-ava]

PR Chain: tmpnet+kube

This PR chain enables tmpnet to deploy temporary networks to Kubernetes. Early PRs refactor tmpnet to support the addition in #3615 of a new tmpnet node runtime for kube.

• >>>>>> [tmpnet] s/Network.ChainConfigs/Network.PrimaryChainConfigs/ #3854 <<<<<<
• [tmpnet] Provide genesis, subnet and chain config via content flags #3857
• [tmpnet] Ensure Node has a reference to Network #3870
• [tmpnet] Switch back to using maps for subnet config #3877
• [tmpnet] Refactor runtime configuration in preparation for kube #3867
• [tmpnet] Unify start network flag usage between e2e and tmpnetctl #3871
• [tmpnet] Avoid serializing the node data directory #3881
• [tmpnet] Rename NodeProcess to ProcessRuntime #3890
• [tmpnet] Switch FlagsMap from map[string]any to map[string]string #3884
• [tmpnet] Ensure tmpnet methods always have a logger #3893
• [tmpnet] Ensure all node runtime methods accept a context #3894
• [tmpnet] Move WaitForHealthy from a function to a tmpnet.Node method #3896
• [tmpnet] Delegate writing of the flag file to the runtime #3897
• [tmpnet] Move monitoring label handling to node #3898
• [tmpnet] Enable runtime-specific restart behavior #3882
• [tmpnet] Enable deployment to kube #3615
• [tmpnet] Enable monitoring of nodes running in kube #3794