fix: sidebar mobile passe au-dessus de la barre d outils du bas (BUG-103)

- en mobile le sidebar de navigation (z-index 200) passait sous .mobile-toolbar (900, 64 px) : les dernieres entrees de l'arbre etaient masquees
- regle mobile .sidebar : z-index 200 -> 950 ; test de non-regression 'mobile sidebar over toolbar' dans unit.test.mjs

README.md

@@ -2,7 +2,7 @@
 
 **Ultra-light web gateway for your Obsidian vaults** — Access, browse, and search all your Obsidian notes from any device via a modern, responsive web interface.
 
-[![Version](https://img.shields.io/badge/Version-2.49.0-blue.svg)]()
+[![Version](https://img.shields.io/badge/Version-2.49.1-blue.svg)]()
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
 [![Docker](https://img.shields.io/badge/Docker-Ready-blue.svg)](https://www.docker.com/)
 [![Python](https://img.shields.io/badge/Python-3.11+-green.svg)](https://www.python.org/)
@@ -1151,8 +1151,8 @@ This project is licensed under the **MIT License** - see the [LICENSE](LICENSE)
 
 ## 📝 Changelog
 
-See [CHANGELOG.md](./CHANGELOG.md) for the complete version history (v1.0.0 → v2.49.0).
+See [CHANGELOG.md](./CHANGELOG.md) for the complete version history (v1.0.0 → v2.49.1).
 
 ---
 
-*Project: ObsiGate | Version: 2.49.0 | Last updated: September 2026*
+*Project: ObsiGate | Version: 2.49.1 | Last updated: September 2026*