Select Color: Document and Color books tabs

Document tab: every concrete colour the drawing uses (objects, block
definitions and layers), found in one pass when the panel opens, as a
grid of swatches sortable by recently used, most used, colour and colour
number. The recently-used list is now kept per drawing, so the ribbon's
Recent row shows this drawing's colours.

Color books tab: load AutoCAD .acb colour books (remembered in the
settings on desktop), browse them page by page with the page strip,
search by name and see the RGB equivalent. A book colour is applied as
RGB plus its BOOK$NAME identity on objects and layers instead of
dropping the name.

Strings translated into all 22 locales.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013rGmDUNr1hUf4zo1X3dak8

locales/zh-TW/opencadstudio.ftl

@@ -1343,6 +1343,21 @@ common =
     .color-hex = 十六進位
     .nearest-index-color = 最接近的索引色
     .exact-index-match = 與索引色完全相符
+    .color-recently-used = 最近使用
+    .color-most-used = 最常使用
+    .color-number = 顏色編號
+    .color-in-drawing = 此圖面中的顏色
+    .color-sort = 排序
+    .color-no-drawing-colors = 此圖面中還沒有顏色
+    .color-books = 配色系統
+    .color-no-books = 未載入配色系統
+    .color-load-book = 載入配色系統 (.acb)
+    .color-book-label = 配色系統
+    .color-rgb-equivalent = RGB 等效值
+    .color-no-match = 沒有相符的顏色
+    .color-not-a-book = 不是配色系統
+    .color-book-encrypted = 此配色系統已加密，無法讀取
+    .color-book-empty = 配色系統中沒有顏色
     .cad-color-index-aci-10-249 = ACI 顏色索引 10–249
     .grayscale-250-255 = { common.grayscale } 250–255
     .isometric-drafting = 等角製圖