patch dependency vulnerabilities, fix type inference issues from sdk, version bump

Author: kesku

.claude-plugin/marketplace.json

@@ -6,14 +6,14 @@
   },
   "metadata": {
     "description": "Official Perplexity AI plugin providing real-time web search, reasoning, and research capabilities",
-    "version": "0.6.0"
+    "version": "0.6.1"
   },
   "plugins": [
     {
       "name": "perplexity",
       "source": "./",
       "description": "Real-time web search, reasoning, and research through Perplexity's API",
-      "version": "0.6.0",
+      "version": "0.6.1",
       "author": {
         "name": "Perplexity AI",
         "email": "api@perplexity.ai"