🧹 [code health improvement] Use centralized logger instead of console

[77svene]

🧹 Code Health Improvement: Centralized Logger

This PR improves the maintainability and observability of the codebase by replacing direct console calls with a centralized logging utility.

🎯 What

• Created a new Logger utility in src/utils/logger.ts.
• Replaced all instances of console.log, console.warn, and console.error with logger.info, logger.warn, and logger.error across the following files:
  • src/agents/solGenerator.ts
  • src/agents/intentParser.ts
  • src/agents/deployer.ts
  • src/zk/prover.ts
  • src/server.ts

💡 Why

• Production Traceability: Added ISO timestamps to every log message, making it easier to correlate events in logs.
• Maintainability: Providing a single point of control for logging behavior (e.g., changing log formats, adding external log shippers like Winston or Pino) without modifying dozens of files.
• Consistency: Standardized the logging format across the entire src/ directory.

✅ Verification

• Code Review: The changes were reviewed and found to be safe and high-quality.
• Manual Check: Verified that all console calls in the application code have been successfully replaced with the new logger using grep.
• Functionality: No business logic was modified; only the logging mechanism was changed.

✨ Result

The codebase is now better equipped for production monitoring, with more informative and consistently formatted log output.

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PR created automatically by Jules for task 1798568809094845683 started by @77svene

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