chore: treat extension .env as optional

[hannesrudolph]

Summary

Prevents the optional .env file from producing noisy [MISSING_ENV_FILE] console output by gating dotenvx.config() behind a file-exists check.

Changes

• src/extension.ts: Added fs.existsSync() check before calling dotenvx.config()
• src/tests/extension.spec.ts: Added tests for both file-exists and file-missing scenarios

Testing

All 6 tests in extension.spec.ts pass.

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Important

Add file existence check for optional .env in extension.ts to prevent console errors, with tests added in extension.spec.ts.

• Behavior:
  • In extension.ts, added fs.existsSync() check before calling dotenvx.config() to prevent [MISSING_ENV_FILE] error when .env is missing.
• Testing:
  • In extension.spec.ts, added tests for scenarios where .env file exists and does not exist.
  • All 6 tests in extension.spec.ts pass.

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[roomote]

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Review complete. No issues found; ready to merge.

• No changes requested

Previous reviews

• 12d1bdb: Review #1

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