Skill weekly-review: wikitool review's findings become decisions (#119)

Files changed:
- AGENTS.md
- CHANGES.md
- README.md
- VERSION
- instructions/weekly-review/SKILL.md
- tools/chemenu/tests/test_instructions_cmd.py

AGENTS.md

@@ -235,6 +235,7 @@ ships the first verbatim and the second only as a `.template`.
 | `wiki-manage` | A page needs creating, or new information needs integrating into one |
 | `wiki-lint` | The wiki needs a health check (also every 10 sources) |
 | `wiki-status` | A quick read-only snapshot is wanted, without a full lint |
+| `weekly-review` | `wikitool review` has findings nobody has acted on yet, or the user asks for the weekly review |
 
 Shared procedures that several skills call into: `tools/wikitool instructions list`.