fix(deps): bump axios to ^1.16.0 to remediate high-severity CVEs

Addresses Dependabot alerts #986-992: prototype pollution in
axios <1.16.0 enabling credential theft, MITM, and DoS. Updates
mem0-ts, openmemory/ui, and server/dashboard.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

mem0-ts/package.json

@@ -100,7 +100,7 @@
     "typescript": "5.5.4"
   },
   "dependencies": {
-    "axios": "^1.15.2",
+    "axios": "^1.16.0",
     "openai": "^4.93.0",
     "uuid": "9.0.1",
     "zod": "^3.24.1"