fix(lib): resolve B-8 send_keys_safe agy verification bypass and add submission retry test

.agents/skills/lib.sh

@@ -1584,13 +1584,9 @@ send_keys_safe() {
   _sks_herdr set-buffer -b "$sks_buf" "$text"
   _sks_herdr paste-buffer -b "$sks_buf" -t "$sess"
   _sks_herdr delete-buffer -b "$sks_buf" 2>/dev/null || true
-  if [[ "$sess" =~ "agy" ]]; then
-    _sks_herdr send-keys -t "$sess" C-m
-    return 0
-  fi
   local was_popup=0
-  if [[ "$sess" =~ "cline" ]] || [[ "$sess" =~ "claude" ]]; then
-    # Skip strict paste check due to scrollout false-positives, proceed to C-m loop
+  if [[ "$sess" =~ "cline" ]] || [[ "$sess" =~ "claude" ]] || [[ "$sess" =~ "agy" ]]; then
+    # Skip strict paste check due to scrollout false-positives, proceed to C-m submission loop
     true
   else
     sleep 0.5