chore: auto-commit (286 archivos)

- .claude/agents/fn-orquestador/SKILL.md
- .claude/commands/fn_claude.md
- .claude/rules/INDEX.md
- .claude/rules/cpp_apps.md
- .claude/rules/ids_naming.md
- CHANGELOG.md
- apps/dag_engine/README.md
- apps/dag_engine/api.go
- apps/dag_engine/dags_migrated/example.yaml
- apps/dag_engine/dags_migrated/example_lineage_tracking.yaml
- ...

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

cpp/framework/app_base.h

@@ -176,6 +176,17 @@ int run_app(AppConfig config, std::function<void()> render_fn);
 // Convenience: run with default config
 int run_app(std::function<void()> render_fn);
 
+// Test-only observability hooks for the Win32 anti-jitter / Alt+RMB resize
+// subclass. Counters increment monotonically across the life of the process.
+// On non-Windows targets they always return 0.
+namespace internal {
+int sizemove_enter_count();
+int alt_rmb_resize_count();
+int alt_lmb_move_count();
+int rbuttondown_seen_count();
+void set_force_alt_for_test(bool v);
+}
+
 } // namespace fn
 
 // ----------------------------------------------------------------------------