feat: Initial confluence-mcp server for realtime collaboration

Provides 8 MCP tools for Confluence Cloud:
- confluence_list_spaces, confluence_create_space
- confluence_search, confluence_get_page
- confluence_create_page, confluence_update_page
- confluence_get_comments, confluence_add_comment

Uses Confluence REST API v2 with basic auth.
Registered in Claude Code and mcp-proxy.

Refs: CF-935

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

node_modules/iconv-lite/lib/helpers/merge-exports.js

@@ -0,0 +1,13 @@
+"use strict"
+
+var hasOwn = typeof Object.hasOwn === "undefined" ? Function.call.bind(Object.prototype.hasOwnProperty) : Object.hasOwn
+
+function mergeModules (target, module) {
+  for (var key in module) {
+    if (hasOwn(module, key)) {
+      target[key] = module[key]
+    }
+  }
+}
+
+module.exports = mergeModules