chore: set copyright holder to GetTechAPI Foundation (GTA)

Update the MIT LICENSE copyright line and the pyproject authors field from 'TechAPI maintainers' to 'GetTechAPI Foundation (GTA)'. TechAPI/LICENSE is left untouched (separate submodule repo).

Author: Seungpyo1007

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2026 TechAPI maintainers
+Copyright (c) 2026 GetTechAPI Foundation (GTA)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

pyproject.toml

@@ -5,7 +5,7 @@ description = "Validation + ingestion engine for the TechAPI dataset"
 readme = "README.md"
 requires-python = ">=3.12"
 license = { text = "MIT" }
-authors = [{ name = "TechAPI maintainers", email = "team@techapi.dev" }]
+authors = [{ name = "GetTechAPI Foundation (GTA)", email = "team@techapi.dev" }]
 dependencies = [
     "fastapi>=0.115",
     "uvicorn[standard]>=0.30",