## Why
Elastic allocation could shrink section minimums under budget pressure and bypass section maxima when the complete request fit. Instruction deduplication also needs to account for which transcript entries actually survive allocation.
## What changed
- Fund demand-capped section minimums before scaling headroom up to section maxima. Reject requests whose minimum reservations cannot fit after duplicate credit.
- Prioritize required records over optional records within each section, reconsider selections when redistributing packing gaps, and reserve global space for protected content and framing.
- Deduplicate retained instructions only against complete selected transcript sources, keep that proof selected during refills, and reuse the released budget.
- Retain elastic transcript history by byte limits instead of fixed item counts. On non-user byte overflow, evict whole older entries toward half the byte allowance.
## Testing
Add regression coverage for section minimums and maxima, priority selection, shared framing, duplicate-proof refills, and elastic history retention and replay.
GitOrigin-RevId: d73b40b88ba1bdab97a619014577f4a297171413
ioanbudea-OAI
fc79b7f53a