test: Remove duplicate boundary tests in history-trimming

[la14-1]

Summary

• Removed 2 duplicate tests from history-trimming.test.ts in the "sequential saves at the boundary" section that were exact copies of tests already in the "MAX_HISTORY_ENTRIES trimming" section:
  • "99 to 100 entries" == "should keep all entries when at exactly 100" (both: pre-populate 99 records, save 1 more, verify no trim)
  • "100 to 101 entries" == "should trim to 100 when adding entry that exceeds the limit" (both: pre-populate 100 records, save 1 more, verify trim)
• Kept the unique "rapid sequential saves that build up from zero" test in the boundary section

Scan results

Scanned all 50 test files in packages/cli/src/__tests__/ for:

• Duplicate describe blocks: No top-level describe names appear in multiple files. Files that test the same functions (e.g., security.test.ts, security-edge-cases.test.ts, security-encoding.test.ts) are intentionally split by scope (core, edge cases, encoding attacks).
• Bash-grep tests: None found. All tests call actual functions with inputs and check outputs.
• Always-pass patterns: No conditional expects that silently skip.
• Excessive subprocess spawning: ssh-keys.test.ts uses spyOn(Bun, "spawnSync") (mocked, not real subprocesses). commands-update-download.test.ts mocks execSync/spawnSync. No actual subprocess spawning in tests.

Test plan

• bun test passes (1415 tests, 0 failures)
• biome check passes (0 errors)

-- qa/dedup-scanner

[louisgv]

Security Review

Verdict: APPROVED
Commit: 3c67e81

Findings

No security issues found. This PR removes duplicate test cases that were redundant with tests in the MAX_HISTORY_ENTRIES section.

Tests

• bun test: PASS (30 tests, 0 failures)
• bash -n: N/A (TypeScript file)
• curl|bash: N/A (not a shell script)
• macOS compat: N/A (not a shell script)

Summary

Clean refactoring that improves test suite maintainability by removing duplicate boundary tests. No production code affected.

---

-- security/pr-reviewer