chore: add MCP integration and refactor documentation into modular how-to guides

- Moved GraphQL query samples into a new `docs/queries` directory for better organization.
- Added new queries and mutations, including `createHost.graphql` and `GetApiVersion.graphql`.
- Introduced `mcp-config.yaml` and updated `docker-compose.yml` for MCP integration.
- Updated IntelliJ `.idea/workspace.xml` settings to reflect project changes.
- Added new how-to guides (`docs/howtos`) for permissions, tags, MCP integration, and schema usage.
- Enhanced tests by updating file paths and improving sample data locations.
- Refined permissions and host group structures in `zabbix-hostgroups.ts` and `resolvers.ts`.

docs/queries/sample_import_host_groups_mutation.graphql

@@ -0,0 +1,28 @@
+### Mutation
+Use this mutation to import host groups.
+
+```graphql
+mutation ImportHostGroups($hostGroups: [CreateHostGroup!]!) {
+  importHostGroups(hostGroups: $hostGroups) {
+    groupName
+    groupid
+    message
+    error {
+      message
+      code
+      data
+    }
+  }
+}
+```
+
+### Variables
+```json
+{
+  "hostGroups": [
+    {
+      "groupName": "ConstructionSite/Test"
+    }
+  ]
+}
+```