ENHANCE: Complete OSGi Compatibility Fix + Comprehensive Architectural Documentation

- CRITICAL FIX: Enhanced MetaDataUtil.getMetaDataLoaderRegistry() with intelligent context-aware registry creation for OSGi compatibility
- MAJOR DOCS: Added comprehensive "CRITICAL OSGI & SPRING INTEGRATION LESSONS LEARNED" section to CLAUDE.md covering compatibility violations, testing patterns, and mandatory code review guidelines
- ARCHITECTURAL PLAN: Updated ARCHITECTURAL_REFACTORING_PLAN.md with execution timeline, implementation insights, and critical dependency requirements
- BUG FIX: Resolved omdb test failures via intelligent MetaDataLoader registry connectivity using MetaData context
- DOCS: Documented centralized utility patterns, Spring integration philosophy, and OSGi bundle lifecycle management best practices

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Co-Authored-By: Claude <noreply@anthropic.com>

Author: dmealing