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/ajv/.runkit_example.js

@@ -0,0 +1,23 @@
+const Ajv = require("ajv")
+const ajv = new Ajv({allErrors: true})
+
+const schema = {
+  type: "object",
+  properties: {
+    foo: {type: "string"},
+    bar: {type: "number", maximum: 3},
+  },
+  required: ["foo", "bar"],
+  additionalProperties: false,
+}
+
+const validate = ajv.compile(schema)
+
+test({foo: "abc", bar: 2})
+test({foo: 2, bar: 4})
+
+function test(data) {
+  const valid = validate(data)
+  if (valid) console.log("Valid!")
+  else console.log("Invalid: " + ajv.errorsText(validate.errors))
+}