refactor: finish seam cleanup across daemon, tray, and platform

[bestlux]

Summary

• finish the Windows capture/runtime seam behind CaptureRuntime
• split daemon input/control-plane snapshot ownership into clearer modules
• decompose the tray dashboard into shell, workflow, layout, task-runner, and window modules
• remove stale daemon-local Windows hook/raw-input files and add seam-level coverage

Validation

• cargo check -p boundless-daemon
• cargo test -p boundless-daemon input -- --nocapture
• cargo check -p boundless-tray
• cargo test -p boundless-daemon --lib
• cargo test -p boundless-tray --bin boundlesstray
• cargo test -p platform-windows --lib
• cargo clippy --workspace --all-targets --all-features -- -D warnings
• cargo test --workspace
• ./scripts/dev/test-suite.ps1 -Profile quick
• ./scripts/dev/test-suite.ps1 -Profile smoke

Notes

• manual Windows UI smoke was not run separately because the scripted smoke profile passed, including the two-node smoke harness
• this commit includes the current Cargo.lock worktree state