Raise the Repair and base-move budgets to 5 #90

Parent

#26

What to build

Every Run, normal or Merge run, allows up to 5 Repairs and up to 5 rounds after the Base branch moves while CI runs, instead of 3. A flaky CI or a busy Base branch is then less likely to fail a Run that could have succeeded. A Run still fails once either budget is spent.

Acceptance criteria

• A Run fails with "repairs exhausted" only when a sixth Repair would be needed (conflict and CI-fix Repairs combined).
• A Run fails only when the Base branch would need merging a sixth time after moving while CI ran.
• The existing integration tests that assert the cap of three are updated to five, and still pass.
• README and any other docs stating the budgets say 5.

Blocked by

None (can start immediately)