[Vallejo1921]

Resolves #71

/claim #71

Summary of Changes

Adds 5 new, focused, and non-overlapping Vitest test suites (32 new tests) bringing test coverage to core modules and plugins that previously had zero tests:

1. ** (9 tests)**:

   • Empty body validation (400)
   • Unsupported Content-Type rejection (400)
   • Missing file in multipart form-data (400)
   • Raw text/csv payload parsing and SQL insertion
   • JSON-wrapped CSV data with custom columnMapping
   • Multipart form-data CSV file upload parsing
   • Invalid CSV / empty rows error handling (400)
   • Partial insert failure reporting with failedStatements
   • Unhandled exception / 500 error boundary

2. ** (7 tests)**:

   • Feature disabled pass-through
   • Admin role bypass
   • Empty SQL guard check
   • Allowed AST query matching
   • Disallowed query rejection and audit record insertion into tmp_allowlist_rejections
   • Trailing semicolon normalization equivalence
   • Resilient fallback on allowlist query loading errors

3. ** (4 tests)**:

   • Plugin initialization with API key
   • Successful email dispatch via Resend API
   • Non-ok API response error propagation
   • Default error message fallback

4. ** (7 tests)**:

   • Cron expression parsing and next execution time calculation
   • Plugin initialization and authentication requirements
   • Missing data source guard on addEvent
   • Route and middleware registration
   • Event callback invocation on /cron/callback
   • Execution context waitUntil handling for async callbacks

5. ** (5 tests)**:

   • Missing stripeSecretKey validation guard
   • Plugin initialization with correct non-auth webhook configuration
   • Route registration (/stripe/subscribe, /stripe/unsubscribe)
   • Subscribe required fields validation
   • Unsubscribe required fields validation

Verification

All 32 new tests run and pass cleanly:

pnpm vitest run src/import/csv.test.ts src/allowlist/index.test.ts plugins/resend/index.test.ts plugins/cron/index.test.ts plugins/stripe/index.test.ts

• Result: 5 test files passed, 32 tests passed (100% pass rate).
• Code style: Verified and formatted with Prettier (npx prettier --check).