feat: rotate to next goal after completion

[itsmiso-ai]

Add goal rotation behavior once the active goal is completed.

Keep the first implementation simple. Completion can select the next valid goal from the fixed catalog. Avoid complex goal weighting, streaks, milestones, or reward catalog work.

Acceptance criteria:

• Completing a goal selects a new active goal.
• Completed goal does not immediately repeat if avoidable.
• Rotation is deterministic or mockable in tests.
• Tests cover completion and next-goal selection.
• Link back to design: add compact rotating colony goals #131.

[itsmiso-ai]

Saffron backlog grooming note

Applied by Saffron groomer.

Recommendation: ready
Lane: normal
Confidence: high

Reason: Clear scope with explicit simplicity constraints, well-defined acceptance criteria, and test requirements.

Summary

Implement deterministic goal rotation that selects the next valid goal from a fixed catalog upon completion, avoiding immediate repeats and complex weighting.

Likely files / areas

• src/goal/rotation.ts
• src/goal/catalog.ts
• src/goal/completion.test.ts

Acceptance criteria

• Completing a goal selects a new active goal from the fixed catalog
• Completed goal does not immediately repeat if avoidable
• Rotation logic is deterministic or mockable in tests
• Tests cover completion and next-goal selection
• Links back to design: add compact rotating colony goals #131

Validation

• npm test -- goal-rotation
• npm run lint

Next action

Review issue #131 for context, then implement deterministic next-goal selection upon completion with mockable/tested rotation logic.