a5de73a39c
Ports the already-built change-history diff/session UI (backend + shared Angular logic) from change-project-research-form to expense-project-research, showing project detail fields (name, plan, output, etc.) instead of a/p metrics per the requested screenshot layout. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01613NaY9LAvy2wFXEeyE5eR