Support full spork history across across HCU version boundaries (PoC)

[franklywatson]

Why

When Flow performs HCU updates the current design of Access Nodes mandates that previous history cannot be served from prior to that version because of the risk of returning different results for older blocks. This limiter to previous spork history is a major issue for EVM users/builders who expect full fidelity access to the spork history regardless of any HCUs.

How will we measure success

• Changes to enable this deployed on mainnet
• EVM GW history support works as builders expect

DACI

D: Jordan, Yurii, SCE
A: Alex, Peter
C: Dete
I: Vishal

Problem definition

EVM builders and users cannot tolerate segmented or missing blockchain history and our EVM equivalence credentials require us to hide Flow specific version details from the EVM experience.

Task breakdown

Beta Give feedback

1. Complete design doc & scope for cross HCU ANs (and EVM gateway) #6541
   +0
2. Implement short/medium term stopgap solution
3. Add FVM/Cadence version number to dynamic protocol state and service event #6542
   +0
4. Implement state machine in dynamic protocol state #6543
   +0
5. Update system smart contracts [SCE]
6. Re-work HCU mechanism on execution, verification and ANs to utilize dynamic protocol state [Leo, Janez]