refactor: Update Python version support and reorganize requirements files...

[duartebarbosadev]

...;Add smoke test functionality and update CI workflow for startup regression checks

This pull request introduces a new smoke test capability for CI and updates dependency handling and documentation to reflect current support and packaging requirements. The main changes are the addition of a headless smoke test to catch startup regressions, removal of unused dependencies (notably mediapipe and pyiqa), and an update to documentation clarifying Python version support.

CI and Testing Improvements

• Added a headless smoke test step to the CI workflow (.github/workflows/ci.yml), which briefly launches the app in offscreen mode to catch startup regressions. This is triggered via the new --smoke-test and --smoke-delay-ms command-line arguments in src/main.py and is controlled by a new environment variable. [1] [2] [3]

Dependency and Packaging Updates

• Removed mediapipe and pyiqa from the requirements and packaging scripts (requirements-cuda.txt, .github/workflows/release-build.yml) to reflect that these are no longer needed for builds or runtime. [1] [2] [3] [4] [5]

Documentation Updates

• Updated the README to clarify that Python 3.12 is the supported and tested version, but newer interpreters may work. This removes the implication that mediapipe is required for interpreter choice.

[Copilot]

Pull Request Overview

This pull request refactors dependency management, adds smoke test functionality for CI startup regression checks, and updates documentation to reflect current Python version support. The changes remove unused dependencies (mediapipe, pyiqa) that are no longer required by the application.

• Added headless smoke test capability with --smoke-test and --smoke-delay-ms command-line arguments to catch startup regressions in CI
• Reorganized requirements files (alphabetically) and removed unused dependencies (mediapipe, pyiqa, and transitive dependencies transformers, safetensors)
• Updated documentation to clarify Python 3.12 as the tested version without referencing removed dependencies

Reviewed Changes

Copilot reviewed 5 out of 6 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/main.py	Added smoke test command-line arguments and auto-exit timer for CI validation
requirements.txt	Reorganized alphabetically, removed pyiqa and mediapipe, added openai as explicit dependency
requirements-cuda.txt	Same reorganization as requirements.txt with onnxruntime-gpu instead of onnxruntime
README.md	Updated Python version note to remove MediaPipe reference and clarify 3.12 support
.github/workflows/release-build.yml	Removed PyInstaller hidden imports and data collection for removed packages
.github/workflows/ci.yml	Added smoke test step to catch startup regressions in headless mode

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