v1.2.0

Code Changes (tracker.go)

• JsonForUpdate(): New Variable method — returns WrapperJSON if present, otherwise ValueJSON
• checkSingleVariable: Two-phase comparison — saves old wrapper-aware JSON, updates Value/ValueJSON/wrapper, only reports change if wrapper-aware JSON differs
• JsonEqual: Replaced JSON serialization with reflect.DeepEqual
• canRegisterObj: Now accepts reflect.Func (pointers, maps, and funcs)
• ToValueJSON: Returns nil for structs (new case before slice/array)

Documentation

• Updated 7 design docs (19 gaps resolved)
• Updated 4 spec files (15 gaps resolved)