QA: Document SwiftUI Toggle tap behavior for automation (#516)

- Add guidance to RULES.md about tapping Toggle controls in custom rows
- Update test 08 (Lock Conversation) with specific instructions for the lock toggle

SwiftUI Toggles inside custom row views (like FeatureRowItem) have
accessibility identifiers on the row element, but tapping the center
doesn't activate the toggle. The switch control itself must be tapped
directly (right side of the row).

Author: yewreeka

qa/RULES.md

@@ -217,6 +217,7 @@ $CXDB finish-test "$TR" "pass"
 ### Interacting with the App
 
 - **Use `sim_tap_id` to tap elements** — pass the accessibility identifier or label text. Do not manually look up coordinates and call `sim_ui_tap` unless there is no identifier available.
+- **SwiftUI Toggle controls require direct taps on the switch.** Toggles inside custom row views (like `FeatureRowItem`) have accessibility identifiers on the row, but tapping the center of the row may not activate the toggle. Instead, tap the right edge of the row where the switch control is located. If `sim_tap_id` doesn't work, use `sim_ui_tap` with coordinates offset to the right side (x + ~100-150 from center).
 - **Use `sim_type_in_field` to enter text** — pass the text field's accessibility identifier and the text to type. Do not manually tap then type.
 - **Use `sim_wait_for_element` after navigation or network actions** — it polls until the element appears, avoiding manual sleep + screenshot loops.
 - **Use `sim_find_elements` to check what's on screen** — search by pattern or list all identifiable elements. More targeted than `sim_ui_describe_all`.

qa/cxdb/qa.db

@@ -20,6 +20,8 @@ After the app joins, generate a new invite URL from the CLI. Save this URL for t
 1. In the app, open the conversation and verify no lock icon appears in the toolbar.
 2. Open conversation info and verify the lock toggle is off.
 
+**Note:** The lock toggle is inside a custom row view. Tapping the center of the row (via `sim_tap_id`) may not activate the toggle — it opens a confirmation sheet when you tap directly on the switch control itself (right side of the row). Use `sim_ui_tap` with x-coordinate offset to the right, or tap directly on the switch at approximately `x: row_center_x + 100`.
+
 ### Generate an invite before locking
 
 3. Use the CLI to generate an invite. Save the invite URL.