docs(load-graph): classify UI and core-UX modules

Fourth classification batch: the modules that shape the first interactive frame — ui-config, ui-theme, ui-navigation, font-config, selection-framework, modeline-config, mousetrap-mode, popper-config, dashboard-config, nerd-icons-config. I annotated each header, added a Batch 4 table to the inventory, and extended the validation allowlist. 33 of 102 modules are now classified.

These mostly stay eager: each has a real first-frame reason (theme, font, modeline, completion stack, landing page). No new hidden dependencies. popper-config carries the spec's open question about its enabled/disabled state, noted for the deferral phase.

1 files changed, 10 insertions, 0 deletions

diff --git a/modules/popper-config.el b/modules/popper-config.el
index 35780eb2..c99a8323 100644
--- a/modules/popper-config.el
+++ b/modules/popper-config.el
@@ -3,6 +3,16 @@
 ;;
 ;;; Commentary:
 ;;
+;; Layer: 2 (Core UX).
+;; Category: C/P.
+;; Load shape: eager.
+;; Eager reason: configures popper so popup buffers (Messages, help, compilation)
+;;   appear as managed popups. The enabled/disabled state is an open question in
+;;   the spec; revisit during deferral.
+;; Top-level side effects: package configuration via use-package.
+;; Runtime requires: none.
+;; Direct test load: yes.
+;;
 ;; Configuration for popper.el, which manages secondary buffers as popup windows.
 ;; Popup buffers (like *Messages*, help, and compilation output) are displayed in
 ;; a dedicated bottom window and can be easily toggled, cycled, or promoted to