feat(ms): add MRM transition channel browser

[nmrtist]

Summary

• Add a virtualized transition/channel browser to the existing Mass spectrometry tool panel for large MRM/SRM and chromatogram-only runs.
• Support free-text filtering by channel name and native ID, plus structured filters for precursor m/z, product m/z, polarity, collision energy, and activation method.
• Provide deterministic transition-aware sorting and clear feedback for empty runs, missing transition metadata, and filters with no matches.
• Reuse the existing typed field, binding, action, undo, and project-persistence infrastructure for channel selection.
• Restrict channel changes to chromatogram plots and normalize multi-series overlays to the selected channel without retargeting extracted mass-spectrum plots.
• Cache channel metadata and filtered matches, and virtualize row rendering for large channel collections.
• Update the English and Simplified Chinese importing guides.

Validation

• cargo fmt --all -- --check
• cargo pr-check
• npm run build from docs/
• Deterministic tests for filtering, stable sorting, empty states, selection/undo, multi-series plots, mass-spectrum protection, and large channel collections.

UI display logic

• Channel selection reuses the existing command/action and typed binding infrastructure.
• No Ribbon-level hiding or panel auto-closing behavior was added.
• Empty and no-match states provide explicit feedback and a next step.
• Documentation updated in docs/ for English and zh-CN.