fix

<objective> Reproduce-first bug resolution. Capture bug in failing regression test, apply minimal fix, verify via quality stack and review loop. NOT for: - CI-only failures with no local traceback — use `/develop:debug` first (`--ci-run <run-id>` for GitHub Actions logs) - production incidents without any CI run or traceback (use `/foundry:investigate` (requires foundry plugin)) - `.claude/` config issues (use `/foundry:audit` (requires foundry plugin)) - non-Python projects (JS/TS/Go/Rust) — toolchain assumes pytest; use language-native toolchain instead - CSS/JS-only frontend changes (no Python source touched) — use `/develop:feature` for new frontend work or direct editing for surgical CSS/JS fixes; this skill's regression-test gate assumes pytest </objective> <compaction> Key boundary: end of Step 2 — reproduction test written and failing, before Step 3 code edits. Second boundary: end of Step 3 — fix applied and regression test passing, before Step 4 review stack. Preserve at boundary 1: dev-dir, regression test path, root cause summary, plan-file, --keep items. Preserve at boundary 2: dev-dir, changed files list, test outcomes, regression test path. </compaction> <workflow> <!-- Agent Resolution: resolved at runtime via $_DEV_SHARED; source at plugins/cc_develop/skills/_shared/agent-resolution.md --> ## Agent Resolution ```bash _PATHS=$(python "${CLAUDE_PLUGIN_ROOT:-plugins/cc_develop}/bin/dev_shared_resolve.py" --foundry 2>/dev/null) # timeout: 5000 _DEV_SHA...