docs: add scoped registrar recovery guidance

.claude/rules/first-session.md

@@ -17,7 +17,7 @@ roadmap phase. **Wait for approval before creating.**
 
 **Step 4 — Write the workplan file; fix-consistency registers it (ADR-001)**
 ```
-workplans/RAILIANCE-WP-NNNN-<slug>.md   ← write this, commit it
+workplans/RPF-WP-NNNN-<slug>.md   ← write this, commit it
 ```
 Then register by running the consistency check — do **not** call
 `create_workplan`/`create_task` yourself; manual registration duplicates what
@@ -29,6 +29,11 @@ C-06 creates the hub workplan + tasks and writes `state_hub_workstream_id`
 (legacy frontmatter name — holds the workplan UUID) and `state_hub_task_id`
 back into the file.
 
+If C-06/C-11 is skipped on a non-registrar host, commit and push the workplan,
+then run `uv run --project ~/repo-manager rmgr registrar-reconcile --path .
+--confirm-primary --push` once. Never export registrar authority directly or
+create hub rows by hand.
+
 **Step 5 — Record the setup**
 ```
 add_progress_event(