Stage-Specific Claim Regeneration Controls

A single "Reset to Draft" action was replaced with stage-specific regeneration options: redo evidence gathering, redo analysis, redo grouping, or redo the submission write-up independently. Each option preserves work from stages that aren't being redone. This avoids the previous all-or-nothing reset, so correcting one stage of a claim no longer requires regenerating the entire pipeline from scratch.

How to use

1. Open a claim that has progressed past draft.
2. In the claim header actions, choose the stage you need to redo:
   • Analyze Again — re-run eligibility analysis
   • Group Again — rebuild projects from evidence
   • Write Submission Again — regenerate narrative writeups
   • Reset To Draft — full reset when you need to start over
3. Confirm the dialog (and optionally edit stage instructions) before continuing.
4. Wait for Claim Progress to finish, then review only the stages that changed.