fix(cli): share the TUI wait budget

[adity982]

Summary

Replace tui-mcp-control.test.ts's iteration-count polling loop with the shared TUI wait helper. All 28 call sites now inherit the established local/CI wall-clock budget and MAKA_TEST_WAIT_BUDGET_MS override; the observed credential-retirement race also gets a specific timeout description.

Fixes #4094

Verification

• node --test packages/cli/dist/__tests__/tui-mcp-control.test.js — 19 passed
• npx biome check packages/cli/src/__tests__/tui-mcp-control.test.ts — passed
• Full npm --workspace maka-agent test built all prerequisites and ran the suite, but the Windows host reported unrelated pre-existing permission/durability failures (EPERM for symlink/fsync) plus unrelated timing assertions. The focused MCP controller file passed independently.

AI use

Select exactly one:

• No generative tool made a substantive contribution
• Generative tooling made a substantive contribution

Tool(s) and scope: OpenAI Codex traced the existing shared helper, prepared the focused import/removal change, and ran validation. The human contributor of record reviews and owns the submission.

Checklist

• Tests cover the change and fail without it
• Lint, format, typecheck and the affected suites pass locally

Does this PR entail a change in behavior?

• Yes — described under Summary above
• No