fix(patches): validator portability, clearer docs, broader hook trigger

.superpowers/handoff/task-B3-brief.md

@@ -0,0 +1,37 @@
+### Task B3: Hook the validator into pre-commit
+
+**Files:**
+- Modify: `.pre-commit-config.yaml`
+
+**Interfaces:**
+- Produces: a local hook that runs `local/validate-patches.R` when the registry or patch files change.
+
+- [ ] **Step 1: Add the hook**
+
+Add a `repo: local` hook entry to `.pre-commit-config.yaml`:
+
+```yaml
+  - repo: local
+    hooks:
+      - id: validate-patches
+        name: validate patch registry
+        entry: Rscript local/validate-patches.R
+        language: system
+        files: ^local/patches/
+        pass_filenames: false
+```
+
+- [ ] **Step 2: Verify the hook runs**
+
+Run: `pre-commit run validate-patches --all-files`
+Expected: hook passes (`Patch registry OK`).
+
+- [ ] **Step 3: Commit**
+
+```bash
+git add .pre-commit-config.yaml
+git commit -m "ci(patches): validate patch registry in pre-commit"
+```
+
+---
+