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.serena/memories/current_refactoring_context.md

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+# Current Refactoring Context
+
+## Data Ingestion Service Refactor
+The project is currently undergoing a major refactoring to move away from singleton patterns to a dependency injection approach using service containers.
+
+### What's Been Done
+- Created connection pool pattern with `ServiceContainer`
+- Refactored data-ingestion service to use DI container
+- Updated handlers to accept container parameter
+- Added proper resource disposal with `ctx.dispose()`
+
+### Migration Status
+- QM handler: ✅ Fully migrated to container pattern
+- IB handler: ⚠️ Partially migrated (using migration helper)
+- Proxy handler: ✅ Updated to accept container
+- WebShare handler: ✅ Updated to accept container
+
+### Key Patterns
+1. **Service Container**: Central DI container managing all connections
+2. **Operation Context**: Provides scoped database access within operations
+3. **Factory Pattern**: Connection factories for different databases
+4. **Resource Disposal**: Always call `ctx.dispose()` after operations
+
+### Example Pattern
+```typescript
+const ctx = OperationContext.create('handler', 'operation', { container });
+try {
+  // Use databases through context
+  await ctx.mongodb.insertOne(data);
+  await ctx.postgres.query('...');
+  return { success: true };
+} finally {
+  await ctx.dispose(); // Always cleanup
+}
+```
+
+### Next Steps
+- Complete migration of remaining IB operations
+- Remove migration helper once complete
+- Apply same pattern to other services
+- Add monitoring for connection pools