fix: client build failure in test cleanup utility

[jhamon]

Remove SLF4J dependency from IndexCleanupUtility to fix NoClassDefFoundError in CI.

The IndexCleanupUtility was crashing in the CI workflow because the shadowJar relocates org.slf4j to io.pinecone.shadow.org.slf4j. However, the utility was still importing and trying to use the unshaded org.slf4j.LoggerFactory, which was not available on the runtime classpath provided by the workflow. This change makes the utility independent of SLF4J by using a simple System.err based logger. New unit tests for CLI argument parsing were also added to prevent regression.

---

 

---

Note

Resolves runtime logging dependency issues and hardens CLI handling for the cleanup utility.

• Replaces SLF4J with lightweight System.err-based logging (logInfo/logWarn/logError), removing external logger imports and calls
• Extracts and validates CLI parsing via parseArgs with clear errors for missing/invalid/negative values; logs unknown args
• Updates main to use ParsedArgs and new logging helpers; improves error reporting and summary output
• Adds unit tests covering argument parsing and cleanup paths (dry-run, terminating resources, null/empty lists, successful deletions)

^{Written by Cursor Bugbot for commit 80624cf. This will update automatically on new commits. Configure here.}

[cursor]

Cursor Agent can help with this pull request. Just @cursor in comments and I'll start working on changes in this branch.
_{Learn more about Cursor Agents}