docs: Nachzug zu #119 - Verpflichtungsschicht in Installation, Setup und docs/ (#119)

Files changed:
- AGENTS.md
- CHANGES.md
- INSTALL.md
- README.md
- VERSION
- docs/knowledge-and-commitment.md
- instructions/dev/doc-pull-through.md
- instructions/setup-instance.md
- instructions/upgrade-instance.md
- tools/README.md

tools/README.md

@@ -48,11 +48,13 @@ tools/
     catalog.py             how the corpus groups into collections and areas, and the shard threshold - with no CLI attached
     lint_core.py           the lint checks and the report, with no CLI attached
     types_core.py          type-spec listing/description, with no CLI attached
+    review.py              the weekly review's five checks - the read-time join of kb/gtd/ against the tracker, with no CLI attached
     markdown_code.py       masks code spans/fences so a page may show wiki notation, not only use it
     version.py             the stack version: VERSION, the release stamp, the compatibility rule
     kb_state.py            the KB version (.wikitool-kb.json) and the migration chain
     corpus_diff.py         invariant comparison of kb/ between two revisions
     search/                pluggable search backends, plus service.py - the search core
+    tasks/                 the task-tracker provider layer: protocol.py (TaskReader/TaskWriter), config.py (.wikitool-tasks.json), one module per adapter - no instruction ever learns which provider it is
     commands/              one module per command or command group: the terminal adapters
     tests/                 pytest suite
 ```