refactor(source-crawler): enable direct injection of VendorAPIMetricsRecorder

[chrisale000]

Description

• Add @Named and @Inject annotations for direct component scanning
• Office365 uses enableSubscriptionMetrics() at earliest initialization stage
• Maintain full backward compatibility with existing injection.
• Remove Rest Client Logging as this logging is covered in the crawler and the request can be recreated.

Testing: Verified both patterns generate metrics successfully

• Spun Up Multiple pipelines locally and confirmed:
  • Direct injection via @Named/@Inject (subscription metrics disabled by default) ✓
  • Office365: Early enablement in Source constructor ensures metrics available throughout lifecycle ✓
  • Comprehensive test coverage for enablement functionality and constructor behavior ✓
  • Backwards compatibility ✓

Issues Resolved

N/A

Check List

• New functionality includes testing.
• New functionality has a documentation issue. Please link to it in this PR.
  • New functionality has javadoc added
• Commits are signed with a real name per the DCO