chore: bump to v0.3.0 + rebuild dist

Version bump across package.json, plugin.json, marketplace.json.
Rebuilt dist/ to reflect Basic Auth header and updated user-agent string.

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

Author: cedriclombardot

.claude-plugin/marketplace.json

@@ -6,12 +6,12 @@
   },
   "metadata": {
     "description": "Leexi MCP plugin — read calls and transcripts from Claude.",
-    "version": "0.2.1"
+    "version": "0.3.0"
   },
   "plugins": [
     {
       "name": "leexi-mcp",
-      "version": "0.2.1",
+      "version": "0.3.0",
       "source": "./",
       "description": "Read Leexi calls and transcripts from Claude. Built for post-call automation routines.",
       "category": "productivity",

.claude-plugin/plugin.json

@@ -1,7 +1,7 @@
 {
   "name": "leexi-mcp",
   "description": "Read Leexi calls and transcripts from Claude. Built for post-call automation routines.",
-  "version": "0.2.1",
+  "version": "0.3.0",
   "author": {
     "name": "DonkeyCode",
     "email": "hello@donkeycode.com"