feat(ui): port retail component book rows

Instantiate gmSpellComponentUI category and component entries from LayoutDesc 0x21000033 instead of synthesizing catalog rows. Preserve localized category titles, authored textures and geometry, live icon/count/desired bindings, selected-object synchronization, and retail's inclusive 0..5000 desired-level contract.

Co-authored-by: OpenAI Codex <codex@openai.com>

docs/plans/2026-05-12-milestones.md

@@ -6,8 +6,8 @@
 LANDED 2026-07-15.** The complete connected melee/missile, death/loot,
 inventory, and item-giving demo is user-gated. The shared projectile/effect
 foundation is hardened through Step 9 and its single-client visual gate passes.
-Next is the connected F.5 spellbook/favorite-bar/delete visual gate, followed
-by cast/enchantment presentation and the two-client portal/observer VFX gate.
+Next is the connected F.5 component-book/favorite-bar visual gate, followed by
+cast/enchantment presentation and the two-client portal/observer VFX gate.
 Carried:
 #145-residual, #116 slide-response, R6/TS-42, and Track MP0.
 
@@ -656,6 +656,9 @@ its authored scrollbar, ports exact school/level filter masks and stable
 display-order sorting, carries learned spells into the open favorite bar, and
 routes Delete through the shared retail confirmation factory plus
 server-authoritative `CM_Magic::Event_RemoveSpell (0x01A8)` response path.
+The component-book follow-up now instantiates retail's category and component
+listbox templates from LayoutDesc `0x21000033`, preserving localized headings,
+row/selection textures, icon/name/count columns, and desired-value editing.
 
 **Phases to ship:**
 - **F.4** — Spell cast state machine (buffs + recalls first, projectile