feat(cqrs): add projected portfolio status query

[blackms]

Summary

• Adds a projected GetPortfolioStatusQuery handler backed by portfolio, position, order, and trading-state read models.
• Adds a durable trading-state read model projected from TradingSuspendedEvent and TradingResumedEvent.
• Uses active order projections for read-side trailing buy/sell pair summaries and keeps optional query sections lazy.

Acceptance Criteria

• Given trading suspend/resume domain events, when they are dispatched, then they update and persist the trading-state projection.
• Given projected portfolio, position, order, and trading state, when portfolio status is queried, then the response is aggregated from read models without using the legacy trading adapter.
• Given optional portfolio status sections are disabled, when the query is handled, then positions, trailing orders, and order history are not loaded or returned.

Changes

• Added ITradingStateReadModel and JSON projection/writer/handler for operational trading state.
• Added GetPortfolioStatusHandler to aggregate projected portfolio status and order history.
• Registered the trading-state read model in Autofac and isolated integration fixture wiring.
• Added Application and Infrastructure tests covering RED/GREEN behavior.

Testing

• dotnet test tests/IntelliTrader.Application.Tests/IntelliTrader.Application.Tests.csproj --no-restore
• dotnet test tests/IntelliTrader.Infrastructure.Tests/IntelliTrader.Infrastructure.Tests.csproj --no-restore
• dotnet test IntelliTrader.sln --no-restore
• git diff --cached --check

Checklist

• Tests pass
• Coverage maintained
• Linter clean via git diff --cached --check
• Documentation updated: not applicable, internal CQRS slice

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 47bf1a1e-2b67-4d68-bb20-ef3f22e40796

📥 Commits

Reviewing files that changed from the base of the PR and between 75a330f and 33fa115.

📒 Files selected for processing (10)

• IntelliTrader.Application/Ports/Driven/ITradingStateReadModel.cs
• IntelliTrader.Application/Trading/Handlers/PortfolioStatusQueryHandler.cs
• IntelliTrader.Application/Trading/Queries/GetPortfolioStatusQuery.cs
• IntelliTrader.Infrastructure/Adapters/Persistence/ReadModels/ITradingStateReadModelProjectionWriter.cs
• IntelliTrader.Infrastructure/Adapters/Persistence/ReadModels/JsonTradingStateReadModel.cs
• IntelliTrader.Infrastructure/Adapters/Persistence/ReadModels/TradingStateReadModelProjectionHandler.cs
• IntelliTrader.Infrastructure/AppModule.cs
• tests/IntelliTrader.Application.Tests/Trading/Handlers/PortfolioStatusQueryHandlerTests.cs
• tests/IntelliTrader.Infrastructure.Tests/Adapters/Persistence/TradingStateReadModelProjectionTests.cs
• tests/IntelliTrader.Infrastructure.Tests/Integration/InfrastructureTestFixture.cs

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/projected-portfolio-status-query

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[codecov]

Codecov Report

❌ Patch coverage is 87.54209% with 37 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
...on/Trading/Handlers/PortfolioStatusQueryHandler.cs	88.81%	8 Missing and 10 partials ⚠️
...ersistence/ReadModels/JsonTradingStateReadModel.cs	85.08%	12 Missing and 5 partials ⚠️
...adModels/TradingStateReadModelProjectionHandler.cs	80.00%	0 Missing and 1 partial ⚠️
IntelliTrader.Infrastructure/AppModule.cs	83.33%	1 Missing ⚠️

Files with missing lines	Coverage Δ
...Application/Ports/Driven/ITradingStateReadModel.cs	100.00% <100.00%> (ø)
...ication/Trading/Queries/GetPortfolioStatusQuery.cs	100.00% <ø> (+100.00%)	⬆️
...adModels/TradingStateReadModelProjectionHandler.cs	80.00% <80.00%> (ø)
IntelliTrader.Infrastructure/AppModule.cs	86.50% <83.33%> (-0.13%)	⬇️
...ersistence/ReadModels/JsonTradingStateReadModel.cs	85.08% <85.08%> (ø)
...on/Trading/Handlers/PortfolioStatusQueryHandler.cs	88.81% <88.81%> (ø)

... and 3 files with indirect coverage changes

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