feat(games): add cloud-empress game package

Transcribe the six core-rulebook chapters into rules/, with every
rollable table extracted into tables/ so the CSVs are the single
source of truth: 21 tables plus the four starting kits under
characters/. Chapters keep only non-dice reference charts and the
age table.

Add eight commands: background, loadout, character, sigil, spell,
mishap, panic, and test (d100 under-roll with advantage and
disadvantage, including the doubles-as-extremes rule).

weather and encounters are package-authored stand-ins for the
setting-book tables; sparks and complication-themes are original.

games/cloud-empress/tables/mishaps.csv

@@ -0,0 +1,10 @@
+min,max,text,tags
+1,2,"能够在最后一刻修正错误。",fixed
+3,3,"效果击中了两倍的目标。",amplified
+4,4,"效果的威力翻倍。",amplified
+5,5,"预期的效果没有发生。取而代之的是，一个随机的法术或纹章效果击中了目标。",misdirected
+6,6,"效果发生了，但击中了一个随机目标。",misdirected
+7,7,"效果发生了，但让人感到不安。进行一次恐慌检定。",disturbing
+8,8,"效果发生了，但对周围的人来说是痛苦和令人不安的。你承受 1 点创伤，每个目击者承受 1 点压力并进行一次恐慌检定。",disturbing
+9,9,"效果发生了，但对周围的人来说是痛苦和令人不安的。你承受 1 点创伤，每个目击者承受 1 点压力并进行一次恐慌检定。",disturbing
+10,10,"效果发生了，但带来了一些不自然的东西。你被诅咒了；在诅咒表上投掷。",cursed