Add company settings and number sequence API routes

- Add CompanySetting routes (list, get, set) backed by company-scoped store
- Add Number routes (list, update) for managing number sequences
- Register new store namespaces for numbers and companysetting
- Add CompanySetting and NumberSequence schemas to OpenAPI
- Regenerate API docs and index for the new routes

src/db/store.js

@@ -27,6 +27,8 @@ const STORE_NAMESPACES = [
     'entitycontact',
     'quote',
     'order',
+    'numbers',
+    'companysetting',
 ];
 
 /**