feat(curator): Chinese from CC-CEDICT, with the HSK levels of 2025

Chinese comes from CC-CEDICT (CC BY-SA 4.0), made for learners of
Chinese: `curate cedict` writes two dictionaries of its entries,
`cc-cedict-hans-en` (zh-Hans) and `cc-cedict-hant-en` (zh-Hant), so a
studyset finds its words as it writes them, each finding a word by
either script, by pinyin with or without tones and by its meanings.
Readings are pinyin with tone marks, a syllable to a character; measure
words are a remark beside the meanings.

The HSK levels are those of the 2025 examination syllabus, which HSK
3.0's examination follows since July 2026 (decided 2026-10-14: level
tags, credited), as hsk30 extracted them (MIT): `hsk:1` … `hsk:6`, and
`hsk:7` for 7 to 9, each given to the entry read as the syllabus reads
the word (的 de, not 的 dì; 书 shū, not the Book of Documents, Shū),
ranking the words, HSK 1 first.

`curate update --languages de,el,en,zh` takes over from `--wiktionary`:
Chinese from MDBG's file of the day as often as EDRDG's files, the rest
from Wiktionary's dump.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

halkyon_learn_curator/test/fixtures/cedict-sample.txt

@@ -0,0 +1,46 @@
+# CC-CEDICT
+# Community maintained free Chinese-English dictionary.
+# 
+# Published by MDBG
+# 
+# License:
+# Creative Commons Attribution-ShareAlike 4.0 International License
+# https://creativecommons.org/licenses/by-sa/4.0/
+# 
+# Referenced works:
+# CEDICT - Copyright (C) 1997, 1998 Paul Andrew Denisowski
+# 
+# CC-CEDICT can be downloaded from:
+# https://www.mdbg.net/chinese/dictionary?page=cc-cedict
+# 
+# Additions and corrections can be sent through:
+# https://cc-cedict.org/editor/editor.php
+# 
+# For more information about CC-CEDICT see:
+# https://cc-cedict.org/wiki/
+# 
+#! version=1
+#! subversion=0
+#! format=ts
+#! charset=UTF-8
+#! entries=125264
+#! publisher=MDBG
+#! license=https://creativecommons.org/licenses/by-sa/4.0/
+#! date=2026-10-13T08:59:07Z
+#! time=1791881947
+中國 中国 [Zhong1 guo2] /China/
+了 了 [le5] /(completed action marker)/(modal particle indicating change of state, situation now)/(modal particle intensifying preceding clause)/
+了 了 [liao3] /to finish/(used with 得[de2] or 不[bu4] after a verb to express (im)possibility, as in 忘不了[wang4 bu5 liao3] "cannot forget")/(literary) (usually followed by a negative such as 無|无[wu2] or 不[bu4]) completely (not); entirely (not); (not) in the least/variant of 瞭|了[liao3]/
+女兒 女儿 [nu:3 er2] /daughter/
+學習 学习 [xue2 xi2] /to learn; to study/
+書 书 [Shu1] /abbr. for 書經|书经[Shu1 jing1]/
+書 书 [shu1] /book/letter/document/CL:本[ben3],冊|册[ce4],部[bu4]/to write/
+熊貓 熊猫 [xiong2 mao1] /panda/CL:隻|只[zhi1]/
+略 略 [lu:e4] /brief; sketchy/outline; summary/to omit/(bound form before a single-character verb) a bit; somewhat; slightly/plan; strategy/to capture (territory)/
+的 的 [de5] /of; ~'s (possessive particle)/(used after an attribute when it modifies a noun)/(used at the end of a declarative sentence for emphasis)/(used after a noun, verb or adjective to form a nominal expression, as in 皮革的[pi2 ge2 de5] "one made of leather" or 跑堂兒的|跑堂儿的[pao3 tang2 r5 de5] "a waiter (literally, one who runs back and forth in a restaurant)" or 新的[xin1 de5] "new one")/also pr. [di4] or [di5] in poetry and songs/
+的 的 [di1] /(bound form) a taxi; a cab (abbr. for 的士[di1 shi4])/
+的 的 [di2] /really and truly/
+的 的 [di4] /(bound form) bull's-eye; target/
+說 说 [shui4] /to persuade/
+說 说 [shuo1] /to speak; to talk; to say/to explain; to comment/to scold; to tell off/(bound form) theory; doctrine/
+銀行 银行 [yin2 hang2] /bank/CL:家[jia1],個|个[ge4]/