docs: add project README and MIT license

[AaronL725]

Summary

• document Prodigy's Python research and Rust execution architecture
• add risk, safety, configuration, Demo, live dry-validation, Telegram, and recovery guidance
• provide verified setup, research, testing, and smoke-run commands
• license the project under MIT and link the license from the README
• state current experimental boundaries without overstating maturity

Verification

• python -m pytest --ignore=tests/test_executor_integration.py (137 passed)
• safety-only tests/test_executor_integration.py selection (8 passed, 2 deselected)
• cargo fmt --check
• cargo clippy --workspace --all-targets --all-features -- -D warnings
• cargo test --workspace --lib --bins (264 passed)
• git diff --check
• GitHub GFM render and local-link validation
• GitHub license API identifies the added text as MIT

No source-code files are changed.

[Copilot]

Pull request overview

Adds first-party project documentation and licensing to make the repository easier to understand, set up, and use safely—especially given the project’s live-trading capability and Python/Rust split architecture.

Changes:

• Added a comprehensive README.md describing architecture, safety model, workflows, configuration, and operational guidance (demo-first, dry validation, recovery).
• Added an MIT LICENSE file and linked it from the README.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
README.md	Introduces project overview, architecture/safety guidance, setup and operational workflows, and links to internal docs.
LICENSE	Adds MIT license text for the project.

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