Filter known zero-initialized epoch slots before persisted history
hydrates SHM or merges with a fresh provider frame.
Deats,
- reindex the repaired read view for same-session chart publication
- treat sentinel-only files as empty history for fresh backfill
- reject new first-slot sentinels but preserve modern zero-price bars
- classify raw sentinel evidence separately in `store audit`
Prompt-IO: ai/prompt-io/opencode/20260729T041723Z_ce33deb6_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))