# P_Rec_Annot Plant 3D 2026 foundation

Foundation for migration from the legacy P_Rec_Annot v1.0.4. Legacy sources remain read-only and are not copied here.

Current slice:

* `PRecAnnot.Abstractions` — Autodesk-free immutable contracts and DTOs;
* `PRecAnnot.Core` — deterministic annotation planning and duplicate filtering;
* `PRecAnnot.Application` — command registry and use-case orchestration;
* `PRecAnnot.Plant3D2026` — guarded adapter boundary; compilation against Plant 3D 2026 is blocked until the SDK/runtime is installed;
* `PRecAnnot.UI` — idempotent Ribbon registration model, without legacy `_netload`;
* `PRecAnnot.Telemetry` — local JSONL command-scope events, without project path/number;
* `PRecAnnot.Bundle.Tests` and `PRecAnnot.Core.Tests` — architecture/core/packaging checks.

The first vertical slice is intentionally a dry-run planning slice. It does not mutate DWG until the Plant 3D 2026 adapter is compiled and runtime-tested on a controlled project.

Build:

```powershell
dotnet build .\PRecAnnot2026.sln --configuration Release
dotnet test .\PRecAnnot2026.sln --configuration Release --no-build
```

When Plant 3D 2026 is installed, pass `/p:Plant3D2026InstallDir=...`. Autodesk assemblies are `Private=false`, `CopyLocal=false` and are never committed.