Release DeepPaperNote v2.2.0

[917Dhj]

Summary

• bump DeepPaperNote from v2.1.1 to v2.2.0 across both plugin manifests and Python package metadata
• add user-facing changelog notes for cleaner figure/table crops, 300 dpi visual review, bounded crop correction, and exact reviewed-asset saving

Validation

• /opt/anaconda3/bin/python3 -m pytest -q -ra — 820 passed, 1 skipped
• version parity — pyproject.toml, .claude-plugin/plugin.json, and .codex-plugin/plugin.json all report 2.2.0
• git diff --check — passed
• release-note scope check — passed