chore: bump version to 0.2.2

[myles332]

Summary

• Bump openresearch-cli from 0.2.1 to 0.2.2 in Cargo.toml and Cargo.lock.
• Merging this PR cuts release v0.2.2. It ships everything on main since v0.2.1: run lifecycle state machine (TASK 1: Formalize run lifecycle as an explicit state machine #322), Windows self-update (OR-279 Add self-update on Windows #334), welcome-choice telemetry (feat: track first welcome choice and project creation mode #333), README download buttons (Improve README download buttons and badges #320), experiment tree viewport fix (fix: preserve experiment tree viewport #318).

Verification

• cargo fmt --all --check, cargo clippy --all-targets -- -D warnings, cargo build --locked, cargo test --locked (830 passed, 2 ignored)
• Cargo.lock regenerated to 0.2.2; v0.2.2 tag does not exist on origin
• ui/dist rebuilt from ui/src locally and is byte-identical to the committed bundle
• After release: orx update from 0.2.1 picks up v0.2.2 on macOS, Linux, and Windows

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