fix: replace console.* calls with structured logging service

[boalambo]

Closes #753

Changes

• Replaced all console.log/error/warn calls in 25 production files with structured logger using createLogger() from src/lib/logging/index.ts
• Added ESLint rule no-console: error to .eslintrc.json to prevent regression
• Updated .eslintignore to allow console.* in test and script files
• Resolved merge conflicts with upstream/main

Acceptance Criteria Met

• Zero console.* calls remain in src/ production code
• ESLint rule prevents future regressions

[drips-wave]

@boalambo Great news! 🎉 Based on an automated assessment of this PR, the linked Wave issue(s) no longer count against your application limits.

You can now already apply to more issues while waiting for a review of this PR. Keep up the great work! 🚀

Learn more about application limits