docs: add scoped registrar recovery guidance

AGENTS.md

@@ -104,6 +104,15 @@ curl -s -X PATCH "http://127.0.0.1:8000/tasks/<task_id>" \
    ```
    Coding agents should run this directly; ask the operator only if the CLI or
    State Hub API is unavailable. This syncs task status from files into the hub DB.
+   If C-06/C-11 reports that this host is not the identifier registrar, do not
+   retry, set `STATEHUB_REGISTRAR`, or create hub rows manually. Commit and push
+   the file-backed work, then invoke repo-manager once:
+   ```bash
+   uv run --project ~/repo-manager rmgr registrar-reconcile \
+     --path . --confirm-primary --push
+   ```
+   If unavailable, send one deduplicated registrar request to `repo-manager`;
+   missing UUIDs do not block continued work from the repository files.
 
 ---
 
@@ -172,7 +181,7 @@ read/cache/index layer that rebuilds from files.
 **File location:** `workplans/RPF-WP-NNNN-<slug>.md`
 
 **Archived location:** finished workplans may move to
-`workplans/archived/YYMMDD-RAILIANCE-WP-NNNN-<slug>.md`. The `YYMMDD` prefix is
+`workplans/archived/YYMMDD-RPF-WP-NNNN-<slug>.md`. The `YYMMDD` prefix is
 the completion/archive date; the frontmatter `id` does not change.
 
 **Ad Hoc Tasks:** small opportunistic fixes discovered during a session use
@@ -184,7 +193,7 @@ anything needing analysis, design, approval, dependencies, or multiple phases.
 
 ```yaml
 ---
-id: RAILIANCE-WP-NNNN
+id: RPF-WP-NNNN
 type: workplan
 title: "..."
 domain: financials
@@ -208,7 +217,7 @@ derived health labels, not frontmatter statuses.
 ## Task Title
 
 ` ` `task
-id: RAILIANCE-WP-NNNN-T01
+id: RPF-WP-NNNN-T01
 status: wait | todo | progress | done | cancel
 priority: high | medium | low
 state_hub_task_id: "<uuid>"         # written by fix-consistency — do not edit
@@ -221,5 +230,6 @@ Status progression: `todo` → `progress` → `done`; use `wait` for waiting/blo
 
 To create a new workplan:
 1. Write the file following the format above
-2. Notify the custodian operator to run `make fix-consistency REPO=railiance-platform`
-   (or send a message to the hub agent via `POST /messages/`)
+2. Run `statehub fix-consistency` locally.
+3. On a non-registrar C-06/C-11 skip, use the scoped repo-manager command above
+   once. Never export registrar authority directly or send duplicate requests.