feat: sweep complet — tous les émojis → outline SVG icons

Templates modifiés (22 fichiers):
- _icons.html: +14 new icons (paperclip, external-link, sparkles, lightbulb, tag,
  file-text, save, upload, trending-up, zap, alert-triangle, user, eye-off)
- base.html: +8 JS icons, 🦎🐙🔑🔗👁📋🔲📑❓⚠️→SVG
- page_editor.html: 43→0 émojis (📎📄🔒🔗⭐📋📁✨📝🗄📑📊📅🗓🖼📥🌐✏💬💡 etc)
- settings.html: 30→0 (⚙️📋🏷🧩👥💾🙈👁🔒🌙☀️🌳📊📝⚠🦎✅🐙🔗✏🗑)
- local_workspace.html: 25→0 (📄📁✏🗑⚠📋➕)
- gitea_workspace.html: 25→0 (🔗📄📤🔄⚙📁📄🔒✏🗑💾)
- board.html: 13→0 (📁📊📋☰📈👥✕✓🗑⚡🔍)
- workspace.html: 11→0 (🏠🔑⚙📁🔗📂🐙)
- landing.html: 8→0 (📚🚀📝📊🦎🌐🔒⚡)
- trash.html, table_view, dashboard, accounts, card_detail, public_page,
  workspaces, team_load, notes, _header, detailed_board, card, board_fragment
- Ajouté import _icons.html aux fragments standalone
- 143 tests passent

app/templates/library.html

@@ -395,10 +395,10 @@
       <input type="text" placeholder="Search pages..." x-model="moveSearchQuery" @input="doMoveSearch()">
     </div>
     <div class="move-modal-list">
-      <div class="move-modal-item" @click="confirmMove(0)">📄 <span>Root (no parent)</span></div>
+      <div class="move-modal-item" @click="confirmMove(0)">{{ fd_icon("file",14) }} <span>Root (no parent)</span></div>
       <template x-for="it in moveCandidates" :key="it.id">
         <div class="move-modal-item" @click="confirmMove(it.id)">
-          <span x-text="it.icon || '📄'"></span> <span x-text="it.title"></span>
+          <span x-html="it.icon ? getSvgIcon(it.icon,14) : getSvgIcon('file',14)"></span> <span x-text="it.title"></span>
         </div>
       </template>
     </div>
@@ -414,7 +414,7 @@
           <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>
         </button>
         <div class="peek-title">
-          <span x-text="peekItem.icon || '📄'"></span>
+          <span x-html="peekItem.icon ? getSvgIcon(peekItem.icon,14) : getSvgIcon('file',14)"></span>
           <span x-text="peekItem.title"></span>
         </div>
         <button @click="openItem(peekItem)" title="Open full page">