fix(k1): simplify response-gated launch UX

plugins/xgrids-k1/README.md

@@ -32,9 +32,9 @@ The plugin owns:
 - K1-specific operator instructions and compatibility tests.
 - the scoped React `device.connection` contribution and its BLE/Wi-Fi and
   acquisition pipeline UI.
-- the interactive canonical application-control session: one socket owner,
-  separate workspace/project/START/STOP UI checkpoints, live status gates,
-  single-action physical permits and no automatic retry.
+- the interactive canonical application-control session: one socket owner, one
+  operator launch intent, response-gated workspace/project/START stages, a
+  separate STOP confirmation, live status gates and no automatic retry.
 
 The plugin does not own:
 
@@ -85,11 +85,13 @@ uv run python plugins/xgrids-k1/profile_loader.py
 ```
 
 Plugin v0.5.0 installs that reviewed transport behind explicit plugin actions.
-Opening control performs only the connection-owned operations 1–6. Workspace
-entry releases operation 7; saving the project and preparing local reception
-releases operations 8–10; a separate START click carries the project name and
-then waits for bound `SCANNING + project + init_ready` before operations 13–14.
-STOP is separately permitted, never retried, and keeps the same socket until K1
+The normal UI accepts the project name and one explicit launch confirmation.
+It then performs operations 1–6, operation 7 and operations 8–10 only after the
+previous response barrier succeeds, prepares local reception, and emits one
+START carrying the project name. Local state polling controls only when the
+next reviewed action may be requested; it never schedules a device command by
+elapsed time. START waits for bound `SCANNING + project + init_ready` before
+operations 13–14. STOP is separately permitted, never retried, and keeps the same socket until K1
 reports unbound READY and the operator confirms a steady green indicator. The
 admin CLI still provisions the fixed Keychain item through Apple's hidden
 prompt without accepting the private value as an argument. No physical command