cleanup-audit

# Cleanup Audit A read-only, whole-repo pass that hunts accidental complexity and over-engineering. The diff-scoped version of this job already ships as `pythinker review diff --mode deslopify`; this skill is its repo-wide complement — scan the whole tree, rank the biggest cut first. Scope is complexity only. Correctness bugs, security holes, and performance belong to a normal review or security pass — note them in one line if you trip over them, but do not chase them here. ## What to hunt - Dead code, unused flexibility, and speculative features no caller needs. - Hand-rolled logic the standard library already ships — name the function that replaces it. - A dependency (or hand-written code) doing what the language, runtime, or framework already does. - Single-implementation interfaces, one-product factories, wrappers that only delegate, a module that exports one trivial thing, dead flags and config nobody sets. - The same logic spelled out long-hand where a shorter, equally clear form exists. ## How to work 1. Map before judging: read the tree, the manifest/lockfile, and entry points; use `Grep`/`Glob` (or `LSP` for references and call hierarchy) to confirm a thing is actually unused before proposing its deletion. A deletion proposed without checking callers is a guess. 2. Rank findings biggest cut first. 3. Apply nothing. This is a report. ## Output One line per finding, ranked, each tagged and citing a path: - `delete:` — dead code / speculative feature. R...