Sub-Issue #22.2: Database Schema & Models with Main Branch Integration

[Copilot]

This PR implements the complete database schema and SQLAlchemy models for the configuration management system as specified in issue #22.2, with successful integration into the main branch codebase.

Configuration Management Database Schema

The implementation provides a comprehensive 8-model system for managing hierarchical configuration data:

• config_categories - Top-level grouping (core, professional, social, contact)
• config_types - Second-level grouping (genders, industries, activities)
• config_values - Actual configuration data with hierarchical support
• config_value_translations - i18n support for multiple languages
• config_value_dependencies - Relationships between config values (requires, excludes, etc.)
• config_sync_history - Track YAML sync operations with detailed metrics
• config_change_log - Detailed change tracking for auditing
• config_usage_stats - Usage metrics and analytics per tenant

Key Features

Multi-tenant Architecture

• Proper tenant isolation with nullable tenant_id for global configurations
• Tenant-specific custom values alongside system defaults

Hierarchical Data Support

• Unlimited nesting depth for configuration values
• Hierarchy path tracking for efficient queries
• Parent-child relationships with automatic child counting

Internationalization Ready

• Translation tables for multi-language support
• Translation quality tracking and review workflow

Comprehensive Audit Trail

• Detailed change logging for all modifications
• YAML sync history with performance metrics
• Usage statistics and analytics per tenant

Performance Optimized

• GIN indexes for JSON fields (PostgreSQL)
• Proper indexing strategy for hierarchical queries
• Optimized constraints and foreign key relationships

Integration with Existing Models

This PR successfully integrates the configuration management system with the existing Recaller models:

• Contact and ContactInteraction models
• Organization, OrganizationAlias, and OrganizationLocation models
• SocialGroup and related activity models
• Analytics models (NetworkingInsight, DailyNetworkMetric, etc.)
• Event and attendance tracking models

The integration required resolving merge conflicts and ensuring all models work together seamlessly while maintaining the multi-tenant architecture.

Database Migration

Includes complete Alembic migration script (002_add_configuration_management_tables.py) that creates all tables with proper constraints, indexes, and relationships.

CRUD Operations & Schemas

Provides complete CRUD operations and Pydantic schemas for API integration, following the established patterns in the Recaller codebase.

Fixes #24

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[credevator]

@copilot rework on this PR, resolve the conflict and rebase with main branch. Make sure you commit and push the changes.

[Copilot]

@copilot rework on this PR, resolve the conflict and rebase with main branch. Make sure you commit and push the changes.

I've successfully resolved the merge conflicts and rebased the PR with the main branch. The rebase is complete with commit d9b4abe.

Changes resolved:

• Merged configuration management models with existing contact, organization, social group, analytics, and event models
• Resolved import conflicts in base.py by including both existing and new models
• Preserved the comprehensive 8-model configuration management system
• Updated database schema to be compatible with the latest main branch

The configuration management system is now properly integrated with the latest codebase. The branch will need to be force-pushed due to the rebase changing commit history, but the changes are ready.