bootstrap.md: session-id-WARN nach frischem Bootstrap als erwartet dokumentiert (4.7.4, schließt #54)

Files changed:
- CHANGES.md
- VERSION
- instructions/bootstrap.md

instructions/bootstrap.md

@@ -65,6 +65,14 @@ they are published: the agent harness will not offer `wiki-ingest`, `wiki-query`
 6. **Restart the agent session** if it was already running. Harnesses read the skill
    directories at startup, so skills published mid-session are not picked up.
 
+7. **Expect a lingering `session-id` WARN.** A `tools/wikitool doctor` run at this point reports
+   `OK` throughout except `session-id: WARN` - that check is scoped to the working session, not
+   the clone, so a freshly bootstrapped checkout with no `WIKITOOL_SESSION_ID` exported yet
+   always shows it. This is expected, not a Bootstrap gap: exporting it here would only be true
+   for this one-off setup run, not for whichever session picks up the actual work next, in a new
+   shell after step 6's restart. Run [session-setup.md](session-setup.md) at the start of that
+   session instead.
+
 ## Scope
 
 This does not apply to anything under `kb/`, `raw/` or `reports/`; those are committed and