perf(cli): stagger console polling

[codeaholicguy]

Summary

• place the four console refresh sources into deterministic 750 ms phase slots
• preserve each 3-second recurring cadence, initial fetch behavior, manual refresh, pause/resume, cleanup, and in-flight protection
• add fake-timer coverage for phase separation, cadence, and cleanup

Validation

• npm test (packages/cli): 80 files, 961 tests passed
• npm run lint (packages/cli): 0 errors, 5 pre-existing warnings
• npm run build (packages/cli): 194 files compiled
• commit hook: repository-wide lint and tests passed

Risks

None known.