chore: add LICENSE and transfer PyPI ownership (#20)

* Add license metadata to pyproject.toml and update footer

* Update author to Enric Cusell in pyproject.toml

* build: keep Florin and add Enric to authors

Author: cusell-google

LICENSE

@@ -187,7 +187,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright [yyyy] [name of copyright owner]
+   Copyright 2026 UCP Authors
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

pyproject.toml

@@ -3,10 +3,21 @@ name = "ucp-sdk"
 version = "0.0.3"
 description = "UCP Python SDK"
 readme = "README.md"
-license-files = ["LICENSE"]
+license = {file = "LICENSE"}
 authors = [
-    { name = "Florin Iucha", email = "fiucha@google.com" },
-    { name = "Federico D'Amato", email = "damaz@google.com" },
+    { name = "Enric Cusell", email = "cusell@google.com" },
+    { name = "Federico D'Amato", email = "damaz@google.com" }
+]
+classifiers = [
+    "License :: OSI Approved :: Apache Software License",
+    "Development Status :: 4 - Beta",
+    "Intended Audience :: Developers",
+    "Operating System :: OS Independent",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Topic :: Software Development :: Libraries :: Python Modules",
 ]
 requires-python = ">=3.10"
 dependencies = [