fix(studio): normalize TOS bucket policy comparison

[zyn080302]

Summary

• compare TOS bucket Policy statements semantically across scalar/list response normalization
• accept only the observed server-added Version: 1.0 when the submitted Policy omitted Version
• preserve and verify all unrelated Policy statements while continuing to reject owned-statement conflicts
• add the repository-standard Apache-2.0 header to four Python tests newly added by base PR feat(studio): support VeStack deployment and personal sandbox agents #1057, repairing the inherited License-Check failure without changing test logic

Validation

• 148 focused Release Server/Studio release/artifact/self-update tests passed
• 25 affected VeStack/AgentKit tests passed
• full pre-commit passed, including Ruff formatting and hardcoded-secret detection
• changed Release Server source passed Pyright with 0 errors
• uv lock --check and git diff --check passed
• read-only validation against the real normalized TOS Policy matched without requesting a rewrite