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, 3 deletions

diff --git a/docs/RPC.md b/docs/RPC.md
index 4a68fbe..d1290f5 100644
--- a/docs/RPC.md
+++ b/docs/RPC.md
@@ -16,7 +16,7 @@ this doc is the underlying protocol reference.
 
 ```
 # pane A — the TUI (real render) + a socket listener
-python -m idatui.tui --db <session> --rpc /tmp/ida.sock
+./ida-tui /abs/path/to/binary --rpc /tmp/ida.sock
 
 # pane B — drive it. Ergonomic (auto-finds the socket, terse text):
 python -m idatui.drive where
@@ -117,6 +117,7 @@ to read the pseudocode → `cursor line=.. col=..` onto a token → `rename name
   a generic worker-drain — read `state()` to confirm.
 - IDA renders some names without a leading `.` (e.g. `.init_proc` → `init_proc`
   in pseudocode); resolve/goto by the list name, but match tokens by what's shown.
-- `tests/rpc_smoke.py` boots the app on a socket in-process and drives the whole
-  surface end-to-end — the protocol's regression lock.
+- Drive the surface end-to-end from another process with `idatui.rpcclient` /
+  `idatui.drive`; the headless pilot (`tests/test_scenarios.py`) is the UI
+  regression lock and shares `_sync.py`'s settle logic with the RPC server.
 ```