bump version to 1.7.6

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: CharGrnmn

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@razroo/gmail-mcp",
-  "version": "1.7.5",
+  "version": "1.7.6",
   "description": "Gmail MCP - Provides complete Gmail API access with file-based OAuth2 authentication",
   "type": "module",
   "bin": {