A bulk sketch_add no longer freezes the next gesture

Draw-then-edit is armed from a jump in the entity count: render() sees n > m_autoedit_seen,
selects the last entity and schedules open_primary_autoedit. A scripted add made while a
creation tool was armed looked exactly like a drawn gesture, so it opened that tool's value
field — and an open field freezes the canvas (on_mouse_impl returns early on m_awaiting_length)
and swallows every letter (in_text includes inline_busy()). Measured on the rig: after
sketch_add, 'p' + click added nothing (4 entities before, 4 after); one Escape and the identical
sequence gave 5. It also explains the selection = [last index] that sketch_describe reported
although action_sketch_add never selects anything — the render pass wrote it.

Escape worked because it sequences two set_tool calls: the pending CallAfter fires between them,
so the second one commits the field it finds open. Arming a tool directly is one call, and the
CallAfter fires after it.

Fix: resync m_autoedit_seen at the end of add_entities_scripted, so a scripted add is not read as
something the user just drew. An already-open field is left alone. Covers sketch_add,
sketch_mirror and sketch_offset — the three callers.

The scale rung's Escape workaround is deleted, which is the issue's acceptance criterion; it is
now the regression test. Gesture ladder 93/93 on the rig.

snaporca-j7gc

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01MrMzTpAf78U4NG2M8jfvHY

scripts/gui-ladder.py

@@ -1060,12 +1060,11 @@ def rung_scale():
           f"every cut-out is exactly {side:.6f} squared")
     # Now the part that matters: draw ONE more entity by hand, on top of all that.
     #
-    # The Escape is a WORKAROUND, not decoration: after a bulk sketch_add the next tool key and
-    # click are swallowed — the preview is drawn, its value field opens, and no entity is ever
-    # committed — until one Escape has been pressed. It is reachable only by mixing the socket
-    # into a live gesture session, which is exactly what this rung does. snaporca-j7gc; when that
-    # is fixed, delete this line and the rung must still pass.
-    key("Escape", 0.8)
+    # No Escape here, deliberately: this rung is the regression test for snaporca-j7gc, where a
+    # bulk sketch_add made while a creation tool is armed was read as a drawn gesture, opened that
+    # tool's value field and swallowed the next key and click until one Escape dismissed it. The
+    # gesture below has to land on the FIRST try. Fixed by resyncing m_autoedit_seen in
+    # add_entities_scripted; if this rung ever needs an Escape again, the bug is back.
     key("l", 0.8)
     global PACE
     PACE = 6.0                                     # a thousand entities re-solve between fields