Neo-Tokyo Neon Noir design pour fiches items

- Nouvelle palette : #080c14 fond, accents néon par type (#00d4d4 item, #ff3d5a kungfu, #4a9eff spell, #cc44ff supernatural)
- Nouveaux composants LESS : .cde-neon-header (clip-path angulaire + accent line), .cde-avatar (clip-path), .cde-stat-grid/.cde-stat-cell (style terminal), .cde-badge (parallélogramme), .cde-neon-tabs (underline néon animé), .cde-check-cell
- Fix layout : .cde-sheet width: 100% + height: 100% + overflow: hidden, .cde-tab-body flex: 1 + min-height: 0, .cde-notes-editor flex stretch
- Fix positions : DEFAULT_OPTIONS height explicite pour tous les types (item 620x580, spell 660x680, kungfu 720x680, supernatural 560x520)
- 4 templates items reécrits avec nouvelles classes et structure épurée

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/documents/chat-message.js

@@ -0,0 +1,47 @@
+export class CDEMessage extends ChatMessage {
+  async renderHTML({ canDelete, canClose = false, ...rest } = {}) {
+    const html = await super.renderHTML({ canDelete, canClose, ...rest })
+    this.#enrichChatCard(html)
+    return html
+  }
+
+  getAssociatedActor() {
+    if (this.speaker.scene && this.speaker.token) {
+      const scene = game.scenes.get(this.speaker.scene)
+      const token = scene?.tokens.get(this.speaker.token)
+      if (token) return token.actor
+    }
+    return game.actors.get(this.speaker.actor)
+  }
+
+  #enrichChatCard(html) {
+    const actor = this.getAssociatedActor()
+
+    let img
+    let nameText
+    if (this.isContentVisible) {
+      img = actor?.img ?? this.author.avatar
+      nameText = this.alias
+    } else {
+      img = this.author.avatar
+      nameText = this.author.name
+    }
+
+    const avatar = document.createElement("a")
+    avatar.classList.add("avatar")
+    if (actor) avatar.dataset.uuid = actor.uuid
+    const avatarImg = document.createElement("img")
+    Object.assign(avatarImg, { src: img, alt: nameText })
+    avatar.append(avatarImg)
+
+    const name = document.createElement("span")
+    name.classList.add("name-stacked")
+    const title = document.createElement("span")
+    title.classList.add("title")
+    title.append(nameText)
+    name.append(title)
+
+    const sender = html.querySelector(".message-sender")
+    sender?.replaceChildren(avatar, name)
+  }
+}