refactor(cli): use adaptive table formatter broadly

[thebiglabasky]

Summary

• Migrate remaining user-facing formatter tables to renderAdaptiveTable(...).
• Remove formatter-local terminal width math, fixed-width calculations, and repeated per-cell truncation.
• Update affected formatter snapshots for the natural adaptive spacing changes.

Why

PR #1326 added the shared adaptive table utility. This pass applies it broadly so table layout behavior lives in one renderer instead of each command carrying brittle terminal-width logic.

Validation

• pnpm exec vitest run src/formatters/__tests__/render.spec.ts src/formatters/__tests__/checks.spec.ts src/formatters/__tests__/test-sessions.spec.ts src/formatters/__tests__/status-pages.spec.ts src/formatters/__tests__/account-members.spec.ts src/formatters/__tests__/account-plan.spec.ts src/formatters/__tests__/incidents.spec.ts src/formatters/__tests__/analytics.spec.ts
• pnpm --filter checkly exec tsc -p tsconfig.json --skipLibCheck
• pnpm exec eslint packages/cli/src/formatters/account-members.ts packages/cli/src/formatters/account-plan.ts packages/cli/src/formatters/batch-stats.ts packages/cli/src/formatters/checks.ts packages/cli/src/formatters/incidents.ts packages/cli/src/formatters/status-pages.ts packages/cli/src/formatters/test-sessions.ts
• git diff --check