Fix pump_events: use sdl2.ext.get_events() instead of broken tick(0)

Add pump_events(), timeout_s support, and is_headless property

Merge branch 'pokemon-red-openenv-foundation' of https://github.com/Kking112/Pokemon_Red_OpenEnv_V2 into pokemon-red-openenv-foundation

Comprehesnive documentation update

Revise design notes and credit in README

Fixed issue that caused demo.py to fail

Add temporal awareness: state deltas and reward feedback

Refactor server app initialization and update README for new app structure.

• feat(server): add OpenEnv-parallel sessions and reward shaping overhaul

Enhance demo scripts with headless mode support and update README. Added `--headless` flag to local and Docker demos for off-screen rendering. Updated documentation to reflect changes in rendering behavior.

Add local and Docker random-action demo scripts

finishing touches

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feat(openenv): add validated root manifest, server entrypoint, and docker support

feat: implement pokemon_red_env openenv environment with pyboy memory and rewards