Tracking list for polkajam integration

[clearloop]

This tracking list is not only for polkajam integration but also for the plan for stabilizing the network component of spacejam

For the release page of polkajam,

TODOs

• connectivity maintenance
• response ce128 block request correctly
• block production in with safrole keys
• cache management for the authoring node
• stabilize ce128 block request/response
• make the decision of event loop
• jadex indexing node conformance
• validate metadata integration
• align the grandpa implementation to polkajam
• complete block header data without simulating the whole block