GeezerVison

Remove console_commands from DesiredGameState and add ConsoleCommand as

InterfaceMessage variant

Add environment variable support for bots and scripts

Introduce the EnvironmentVariable flatbuffer table for passing custom
environment variables to bot and script processes. Add the
`environment` field to CustomBot and ScriptConfiguration.
Migrate dev setup to `uv`, replace the monolithic `pytest.py` with
structured tests, and update the serialization codegen to handle
optional vector fields.

Update version

Update to latest schema

Add pack/unpack methods for structs

Upgrade actions/upload-artifact and setup-uv versions

Avoid cloning Python enums

Update schema

flatbuffers-python v0.18.4

Better `.pyi` generation