zh locale: translate skill names and descriptions

skilldesc.txt takes Longju's name, description and condition columns
and its affect texts where their format arguments match 40250's; a
reviewed overlay fills the gaps and renames the empire languages.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/test_build_zh_locale.py

@@ -82,6 +82,23 @@ class LocaleBuildTest(unittest.TestCase):
             self.assertEqual((root / "out.txt").read_bytes().decode("gbk"), "1\t金币\n2\t剑\n")
             self.assertEqual(result["overlaid"], 1)
 
+    def test_skilldesc_keeps_format_arguments(self):
+        with tempfile.TemporaryDirectory() as directory:
+            root = Path(directory)
+            blank = [""] * 22
+            en_row = ["20", "WARRIOR", "Sword Strike", "Bolt", "Hurl", "Attack.", "Long-Range", "Multi", "Faint"] + blank
+            en_row[17], en_row[20] = "Attack Power %.0f-%.0f", "Faint Chance %.0f%%"
+            zh_row = ["20", "WARRIOR", "剑风", "斩气决", "剑气冲霄", "快速挥动 |打击敌人", "远程攻击", "", "击晕"] + blank
+            zh_row[17] = "攻击力 %.0f-%.0f"
+            (root / "en.txt").write_bytes(("\t".join(en_row) + "\n").encode("cp1252"))
+            (root / "zh.txt").write_bytes(("\t".join(zh_row) + "\n").encode("gbk"))
+            (root / "overlay.txt").write_text("VNUM\tCOLUMN\tTEXT\n20\t7\t多目标攻击\n20\t20\t气绝 %.0f\n")
+            result = MODULE.merge_skilldesc(root / "en.txt", root / "zh.txt", root / "out.txt", root / "overlay.txt")
+            row = (root / "out.txt").read_bytes().decode("gbk").rstrip("\n").split("\t")
+            self.assertEqual(row[2:9], ["剑风", "斩气决", "剑气冲霄", "快速挥动 |打击敌人", "远程攻击", "多目标攻击", "击晕"])
+            self.assertEqual((row[17], row[20]), ("攻击力 %.0f-%.0f", "Faint Chance %.0f%%"))
+            self.assertEqual(result["incompatible_format_cells"], ["20:20"])
+
 
 if __name__ == "__main__":
     unittest.main()