fix(skills): support automatic bypass of large-session resume warning dialogs

- Add 'Resuming the full session' and 'Resume from summary' patterns to TUI validation constants
- Update handle_startup_dialogs to automatically submit the choice on large-session warnings, preventing start/resume lockups

.agents/skills/lib.sh

@@ -23,7 +23,7 @@ WORKSPACE_ROOT="$(cd "$SKILL_DIR/../.." && pwd)"
 AGENT_SESSIONS_YAML="${AGENT_SESSIONS_YAML:-$WORKSPACE_ROOT/.mam/agent-sessions.yaml}"
 
 # Central TUI dialog and readiness validation tokens (OP-6)
-_MAM_DIALOG_TOKENS='Do you trust the files|Yes, proceed|No, exit|Allow this|Press Enter to continue|browser to authenticate|Use arrow keys|Esc to cancel'
+_MAM_DIALOG_TOKENS='Do you trust the files|Yes, proceed|No, exit|Allow this|Press Enter to continue|browser to authenticate|Use arrow keys|Esc to cancel|Resuming the full session|Resume from summary'
 _MAM_READY_TOKENS_CLAUDE='Anthropic|Assistant|Chat|Welcome|projects'
 
 # Workspace-relative defaults with environment overrides (Phase Z)
@@ -1221,6 +1221,8 @@ handle_startup_dialogs() {
       _sks_tmux send-keys -t "$sess" Down
       sleep 0.3
       _sks_tmux send-keys -t "$sess" Enter
+    elif printf '%s\n' "$pane" | grep -q 'Resuming the full session'; then
+      _sks_tmux send-keys -t "$sess" Enter
     elif printf '%s\n' "$pane" | grep -Eq "$_MAM_READY_TOKENS_CLAUDE"; then
       return 0
     fi