docs: sweep for the worker-only reality (drop mcp supervisor/spawn.sh/--db)

* RPC.md: the TUI is launched via `./ida-tui <bin> --rpc <sock>` (was
  `idatui.tui --db`); point the "regression lock" note at rpcclient/drive +
  the pilot instead of the deleted rpc_smoke.py.
* PAGING_FINDINGS.md: reframe the intro as the ida-pro-mcp tool functions the
  worker now calls in-process (shapes/caps unchanged); replace the
  supervisor-era "idle self-exit" + "max_workers cap" sections with the
  single-owned-worker lifecycle (no cap, no idle-exit, crash -> reconnect).
* TEXTUAL_NOTES.md / TUI_DRIVING_BLUEPRINT.md: drop the ida-pro-mcp framing and
  the deleted rpc_smoke.py references (-> test_scenarios.py / rpcclient).

Also updated the idatui + idatui-rpc skills (in ~/.pi, outside the repo) to the
worker model: no supervisor/spawn.sh/--db, worker python + $IDATUI_WORKER_PYTHON,
worker.py/worker_client.py/errors.py architecture, and the load-starvation gotcha.

1 files changed, 4 insertions, 4 deletions

diff --git a/docs/TUI_DRIVING_BLUEPRINT.md b/docs/TUI_DRIVING_BLUEPRINT.md
index 094f87a..cb16d73 100644
--- a/docs/TUI_DRIVING_BLUEPRINT.md
+++ b/docs/TUI_DRIVING_BLUEPRINT.md
@@ -328,9 +328,9 @@ terse, socket auto-resolved, every action visible in the gdb TUI pane.
    vocabulary — don't invent; mirror what a power user types).
 4. Wire the **spawn command** + **readiness** into the pane manager.
 5. Reuse transport, client, and ergonomic CLI unchanged.
-6. Add a **smoke test** that spawns the target on a socket and drives the whole
-   surface end-to-end (idatui's `rpc_smoke.py` is the template — it also locks the
-   protocol against regressions).
+6. Add a **regression test** that drives the surface end-to-end (idatui uses a
+   headless Textual Pilot suite, `tests/test_scenarios.py`, sharing the settle
+   logic with the live RPC server via `_sync.py`).
 
 ## 13. Pitfalls & lessons (paid for once already)
 
@@ -352,4 +352,4 @@ terse, socket auto-resolved, every action visible in the gdb TUI pane.
 ---
 
 *Reference implementation: `idatui/{rpc,rpcclient,drive,pane,_sync}.py`,
-`docs/RPC.md`, `tests/rpc_smoke.py` in this repo.*
+`docs/RPC.md`, `tests/test_scenarios.py` in this repo.*