cleanup phases 3

docs/README.md

@@ -29,7 +29,7 @@ The entry point. Start here, follow one link, stop reading.
 | --- | --- | --- |
 | [rules/](rules/index.md) | What must never be broken — the tiered rule set behind the `CLAUDE.md` files | **written** · phase 1 |
 | [integration/](integration/index.md) | The client↔server seam in one place: contract, config, topology, OpenAPI | **written** · phase 2 |
-| [flows/](flows/index.md) | What is implemented, and how to test it — one file per user journey | not yet written · phase 3 |
+| [flows/](flows/index.md) | What is implemented, and how to test it — one file per user journey | **written** · phase 3 |
 | [status/](status/index.md) | Where the project actually is: implemented, backlog, decisions | not yet written · phase 4 |
 | [roadmap/](roadmap/index.md) | Where it goes next, and what gates a launch | not yet written · phase 5 |
 | [_plan/](_plan/README.md) | The chain that builds this tree. **Temporary** — moves to `archive/` when done | in progress |
@@ -49,7 +49,9 @@ Two documents stay outside this tree on purpose:
    a claim, not a fact.
 2. **Verify, don't copy.** A load-bearing claim is checked against code or run. If it cannot be checked,
    it is written with an explicit `UNVERIFIED:` prefix.
-3. **Write short.** A reference doc over ~400 lines should be split.
+3. **Write short.** A reference doc over ~400 lines should be split. One deliberate exception:
+   [flows/testing-setup.md](flows/testing-setup.md) is the single page you hand a new tester, and splitting
+   it would defeat that.
 4. **English throughout**, including in files that describe Persian UI copy.
 
 The full convention is in [docs/rules/documentation.md](rules/documentation.md), to be enforced by a