feat(ui): text style CommonTextStyle por variante + reorg assets CommonUI/Style

- BST_Button (UCommonTextStyle, Rajdhani Bold 15) + BSB_Button_Transparent (UCommonButtonStyle) movidos p/ Content/ZMMO/UI/CommonUI/Style/{Text,Button}/ (espelha Hyper). - UI_Button_Master: arvore CommonTextBlock dentro de TextScaleBox (auto-size) via set_widget_tree; Style->BSB_Button_Transparent_C. - DT_UI_Styles linha Default: Style.Button.<variante>.TextStyle -> BST_Button_C (por variante). - ARQUITETURA.md: prefixos BSB_/BST_ (§3.2) + pasta UI/CommonUI/Style + UI/Shared + UI/Fonts (§2.1). Pipeline conferido via read_data_table (4 variantes apontam BST_Button no path novo, cores Aurora Arcana intactas).

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

ARQUITETURA.md

@@ -206,6 +206,11 @@ Content/
 │   ├── UI/                            ← HUD, Login, CharacterSelect, Inventory,
 │   │   │                                Chat, Party, Guild, Trade, Quest, Map,
 │   │   │                                Shared, Icons
+│   │   ├── Shared/                      ← WBPs reutilizáveis (UI_Button_Master…)
+│   │   ├── Fonts/                       ← Font_*/FF_* (Cinzel, Rajdhani)
+│   │   ├── CommonUI/Style/              ← estilos CommonUI (espelha o Hyper)
+│   │   │   ├── Button/                  ← BSB_* (UCommonButtonStyle)
+│   │   │   └── Text/                    ← BST_* (UCommonTextStyle)
 │   │   └── Themes/                     ← temas sazonais (data-driven, ver §1.10)
 │   │       ├── DA_Theme_Default.uasset         ← sempre carregado, fallback
 │   │       ├── DA_Theme_Christmas.uasset
@@ -323,6 +328,8 @@ não fica em `Data/`.
 | `RT_`   | Render Target                     | `RT_MiniMap`                  |
 | `Font_` | Font (UFont, Composite)           | `Font_Cinzel`                 |
 | `FF_`   | Font Face (UFontFace, Inline)     | `FF_Cinzel_Bold`              |
+| `BSB_`  | Common Button Style (UCommonButtonStyle) | `BSB_Button_Transparent` |
+| `BST_`  | Common Text Style (UCommonTextStyle)     | `BST_Button`             |
 | `NS_`   | Niagara System                    | `NS_Wolf_Death`               |
 | `NE_`   | Niagara Emitter                   | `NE_Sparks_Small`             |
 | `SC_`   | Sound Cue                         | `SC_Wolf_Growl`               |