fix: side peek des bases repasse en vanilla JS + largeur 1100px standard (v7.49.0)

- Panneau peek: les bindings Alpine (x-data absent du conteneur) rendaient
  loovverture et le redimensionnement inoperants -> cblage direct sur le document.
- Helper unique window.fdWirePeekResize (app.js): pointer capture, 300px-90vw,
  clic=fermer, largeur persiste fd_peek_width partagee entre les 4 peeks.
- database-table-container margin:0 (tableau colle a gauche, marge Library).
- .lib-container remonte dans app.css (trash etait pleine largeur), .db-index 1100px.
- ObsiGate verifie sans code: creation .xlsx OK (openpyxl, #186).

app/templates/_database_table_scripts.html

@@ -107,4 +107,6 @@
 .db-list-cell{color:var(--text-secondary);font-size:12px;min-width:110px}
 </style>
 <script type="application/json" id="db-config" nonce="{{ csp_nonce() }}">{{ ({"collection": collection_data.collection, "properties": collection_data.properties, "pages": collection_data.pages, "views": collection_data.views if collection_data.views is defined else []} if collection_data else none) | tojson }}</script>
+<link rel="stylesheet" href="/static/css/my_tasks.css?v={{ asset_version }}">
 <script data-cfasync="false" src="/static/js/database_table.js?v={{ asset_version }}"></script>
+<script data-cfasync="false" src="/static/js/task_db_link.js?v={{ asset_version }}" defer></script>