Audit and remove unused or write-only storage maps

[Miracle0524]

Audit and remove unused or write-only storage maps

Summary

Several storage maps appear to be unused, write-only, or legacy and may unnecessarily inflate chain state.

Problem

• Some storage maps are written to but never read.
• Semantics of certain maps are unclear or legacy.
• These maps contribute to silent chain bloat.

Known Candidates

• NextStakeJobId
• UsedWork
• LargestLocked
  (NetworkModality tracked separately)

Expected Outcome

• Audit of read usage for suspected storage maps.
• Removal or migration of unused storage.
• Reduced chain state size and complexity.

Context

Filed at the request of Rhef to enable agreement with Nucleus and supervised cleanup work.