docs(load-graph): classify text/editing command modules

Second classification batch: the nine custom-* text/editing command helpers (case, comments, datetime, buffer-file, line-paragraph, misc, ordering, text-enclose, whitespace). I annotated each with the load-graph header contract and added a Batch 2 table to the inventory. They're all Layer 2, eager only to register a C-; submap at load, with no necessary eager reason, so all are Phase 3/4 deferral candidates.

The inventory records a second hidden dependency for Phase 2: custom-buffer-file guards its C-; b registration with (when (boundp 'cj/custom-keymap) ...) and declares the keymap only via eval-when-compile, so the binding silently drops when the module loads without keybindings.

1 files changed, 11 insertions, 0 deletions

diff --git a/modules/custom-datetime.el b/modules/custom-datetime.el
index 1c5f40f2..3db4d28f 100644
--- a/modules/custom-datetime.el
+++ b/modules/custom-datetime.el
@@ -1,6 +1,17 @@
 ;;; custom-datetime.el ---  -*- coding: utf-8; lexical-binding: t; -*-
 
 ;;; Commentary:
+;;
+;; Layer: 2 (Core UX).
+;; Category: L/C.
+;; Load shape: eager.
+;; Eager reason: registers its C-; d datetime submap at load. Currently eager by
+;;   init order; a deferral candidate for Phase 3/4 (command/autoload +
+;;   registration API).
+;; Top-level side effects: defines cj/datetime-map, registers it under C-; d.
+;; Runtime requires: keybindings.
+;; Direct test load: yes (requires keybindings explicitly).
+;;
 ;; Utilities for inserting date/time stamps in multiple formats.
 ;;
 ;; Interactive commands: