fix: make better-sqlite3 optional in tests and doctor

[khaliqgant]

Summary

• Skip DLQ SQLite tests when better-sqlite3 is unavailable
• Doctor command passes when ANY SQLite adapter works (not requiring all)

Problem

The staging build was failing with two test failures related to better-sqlite3 not being installed:

1. packages/storage/src/dlq-adapter.test.ts - direct import of better-sqlite3 failed
2. src/cli/index.test.ts > CLI > doctor - doctor command exited with error code 1

Since better-sqlite3 is an optional peer dependency (with node:sqlite as an alternative), the tests and doctor command should handle its absence gracefully.

Changes

1. packages/storage/src/dlq-adapter.test.ts

• Dynamically import better-sqlite3 and check availability
• Skip SQLiteDLQAdapter tests when better-sqlite3 is not installed
• InMemoryDLQAdapter tests continue to run regardless

2. src/cli/commands/doctor.ts

• Doctor now passes if ANY SQLite adapter (better-sqlite3 OR node:sqlite) is available
• Missing adapters are shown as warnings, not failures
• Exit code 0 when at least one adapter works

Test plan

• Storage tests pass locally (SQLite tests run when better-sqlite3 available)
• CI passes on staging (SQLite tests skip when better-sqlite3 unavailable)
• Doctor command exits 0 when only node:sqlite is available

🤖 Generated with Claude Code

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[devin-ai-integration]

Devin Review found 1 potential issue.

View 4 additional findings in Devin Review.

[devin-ai-integration]

🔴 Doctor exit code logic change breaks existing test expecting failure when one driver is missing

The new failed logic at lines 561-567 treats individual driver check failures as non-fatal when at least one driver is available (driverOk = true). However, the existing test 'shows remediation for node:sqlite on older Node versions' in src/cli/commands/doctor.test.ts:185-198 expects process.exitCode to be 1 when node:sqlite is unavailable (Node 18) but better-sqlite3 IS available (via mock).

Root Cause and Impact

With the old code (const failed = results.some((r) => !r.ok)), when node:sqlite returned ok: false, the overall result was failed = true and process.exitCode = 1.

With the new code, the logic is:

const driverOk = availability.betterSqlite3 || availability.nodeSqlite;
const failed = results.some((r) => {
  if (r.name === 'better-sqlite3' || r.name === 'node:sqlite') {
    return !driverOk; // false when at least one driver works
  }
  return !r.ok;
});

In the test scenario:

• checkBetterSqlite3() succeeds via mock → betterSqlite3: true
• checkNodeSqlite() fails (Node 18) → nodeSqlite: false
• driverOk = true || false = true
• For the node:sqlite result: returns !driverOk = false (not a failure)
• No other checks fail → failed = false → process.exitCode = 0
• But src/cli/commands/doctor.test.ts:197 asserts expect(process.exitCode).toBe(1)

Impact: The existing doctor test suite will fail, breaking CI. The test file was not updated to match the new behavior.

Prompt for agents

The doctor.ts logic change at lines 561-567 makes individual driver failures non-fatal when at least one driver is available. This is the intended behavior per the PR description, but the existing test in src/cli/commands/doctor.test.ts at line 197 still expects process.exitCode to be 1 when only node:sqlite is unavailable. Update the test at src/cli/commands/doctor.test.ts lines 185-198 to expect process.exitCode to be 0 instead of 1, and update the test description to reflect that the doctor should pass with warnings when at least one driver is available. You may also want to add assertions checking for the 'warnings' status message.

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