docs: add deprecation warnings for addNoun and addVerb methods

- Add @deprecated JSDoc tags to TypeScript definitions
- Update all documentation examples to use modern add() and relate() API
- Preserve batch operations (addNouns, addVerbs) as they remain current
- Mark deprecated methods in both source and compiled definitions

Migration guide:
- addNoun(data, type, metadata) → add(data, { nounType: type, ...metadata })
- addVerb(source, target, type, metadata) → relate(source, target, type, metadata)

docs/CREATING-AUGMENTATIONS.md

@@ -164,7 +164,7 @@ async execute(op, params, next) {
 
 Common operations in Brainy:
 - `'storage'` - Storage resolution (special)
-- `'add'`, `'addNoun'` - Adding data
+- `'add'` - Adding data
 - `'search'`, `'similar'` - Searching
 - `'update'`, `'delete'` - Modifications
 - `'saveNoun'`, `'saveVerb'` - Storage operations