Audit every retained worktree, branch family, rebased patch, stash,
and unreachable commit against `main`.
Deats,
- factor useful histories into dependency-ordered PR lanes;
- reduce the DPI branch swarm to one five-commit patch set;
- separate runtime, datad, backfill and chart ownership work;
- record deferred patches and post-landing stale-ref cleanup;
- attach Prompt-IO provenance for the generated audit plan.
Prompt-IO: ai/prompt-io/opencode/20260818T064340Z_09ddcf50_prompt_io.md
(this patch was generated in some part by `opencode` using `gpt-5.6-sol` (`openai`))