feat(magic): reorder schools, fix Wu Xing aspect & power formula

- `magicOrder` ArrayField + ▲/▼ buttons for manual reordering
- Magic rolls use school's aspect for Wu Xing, not speciality's element
- Spell power: `difficulty × (aspectValue + freePowerLevels)` (not `successes × diff`)
- Prompt replaces `aspectspeciality`/`bonusmalusspeciality`/`heispend` with `freepowerlevels`

fix: code review issues
- combat.js: guard undefined `ids` in rollInitiative
- rolling.js: catch Dice So Nice promise, normalize French→English kungfu aspects
- weapon/armor/ingredient: `{ min: 0 }` on quantity
- character.js/npc.js: catch rollForActor fire-and-forget promises
- roll-actions.js/tinji-app.js: await ChatMessage.create
- sanhei.js: null guard on properties
- spell.js/kungfu.js: fix aspect name comments (French→English)

templates/form/cde-dice-result.html

@@ -30,6 +30,7 @@
     {{#if spellPower}}
     <div class="cde-rr-spell-power">
       <span class="cde-rr-spell-power-count">{{spellPower}}</span>
+      <span class="cde-rr-spell-power-formula">{{spellPowerAspectLabel}} ({{spellPowerAspectValue}}{{#if spellPowerFreeLevels}} + {{spellPowerFreeLevels}}{{/if}}) × {{rollDifficulty}}</span>
       <span class="cde-rr-spell-power-label">{{ localize "CDE.SpellPower" }}</span>
     </div>
     {{/if}}