chore(deps): bump axios, react-query, lucide-react, pg (v0.15.1-beta)

Validated dependency updates (Dependabot #41, #42, #43, #48):
- axios 1.16.0 → 1.16.1
- @tanstack/react-query 5.95.2 → 5.101.0
- lucide-react 1.16.0 → 1.17.0
- pg 8.20.0 → 8.21.0

Holding ioredis at 5.10.1: 5.11.1 (#45) breaks the backend build via a
type mismatch with BullMQ's bundled ioredis copy; leave until BullMQ
bumps its pinned ioredis.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mikrotik-manager-backend",
-  "version": "0.15.0-beta",
+  "version": "0.15.1-beta",
   "description": "Mikrotik Network Management Platform - Backend API",
   "main": "dist/index.js",
   "scripts": {
@@ -23,12 +23,12 @@
     "express": "^4.18.2",
     "express-async-errors": "^3.1.1",
     "helmet": "^8.1.0",
-    "ioredis": "^5.3.2",
+    "ioredis": "^5.10.1",
     "jsonwebtoken": "^9.0.2",
     "morgan": "^1.10.0",
     "nodemailer": "^9.0.1",
     "otpauth": "^9.5.1",
-    "pg": "^8.11.3",
+    "pg": "^8.21.0",
     "qrcode": "^1.5.4",
     "socket.io": "^4.6.1",
     "ssh2": "^1.14.0",