fix-llm-artifacts

# Fix LLM Artifacts Apply fixes from a previous `review-llm-artifacts` run with automatic safe/risky classification. If `.beagle/llm-artifacts-verification.json` exists, **skip** findings marked `false_positive` and treat `inconclusive` like risky fixes (prompt or skip per user). ## Usage ``` /beagle-core:fix-llm-artifacts [--dry-run] [--all] [--category <name>] ``` **Flags:** - `--dry-run` - Show what would be fixed without changing files - `--all` - Fix entire codebase (runs `review-llm-artifacts --all` first if no review JSON) - `--category <name>` - Only fix specific category: `tests|dead-code|abstraction|style` ## Instructions ### Hard gates Sequence matters. Do not apply fixes until each **pass condition** is satisfied (these steps are not “internal verification”). 1. **Working tree** — `git status --porcelain` is empty **or** a stash was created with message `beagle-core: pre-fix-llm-artifacts backup` and `git stash list` shows it. If the user refuses stash/backup, **stop** or document explicit acceptance of risk in the report before edits. 2. **Review artifact on disk** — `.beagle/llm-artifacts-review.json` exists, **or** `--all` completed a `review-llm-artifacts` run that wrote that file. Otherwise **stop** (no fixes from memory or guesses). 3. **Stale review** — If `jq -r '.git_head' .beagle/llm-artifacts-review.json` ≠ `git rev-parse HEAD`, prompt to re-run review. **`y`** → re-run review, then continue. **`n`** → **abort** the fix pass (do not apply fixes ...