Summary

• Type the MS Teams lifecycle test mocks so the extension test typecheck lane no longer infers never[]/empty mock call tuples.
• Keep runtime test behavior unchanged.

Verification

• pnpm tsgo:test:extensions
• pnpm test extensions/msteams/src/monitor.lifecycle.test.ts

Real behavior proof

Behavior or issue addressed: current PR merge refs fail check-test-types on extensions/msteams/src/monitor.lifecycle.test.ts because the test mocks infer never[] and empty call tuples.

Real environment tested: clean local worktree at current origin/main with repository dependencies linked from the main checkout.

Exact steps or command run after this patch: pnpm tsgo:test:extensions and pnpm test extensions/msteams/src/monitor.lifecycle.test.ts.

Evidence after fix: pnpm tsgo:test:extensions exited 0; pnpm test extensions/msteams/src/monitor.lifecycle.test.ts reported Test Files 1 passed (1) and Tests 5 passed (5).

Observed result after fix: the previously failing MS Teams lifecycle test type errors are gone and the targeted runtime test still passes.

What was not tested: full repository CI has not completed yet.