# Phase 1 — Entry Gate Record

**Phase**: 1 — Configuration project + Core.Abstractions + Admin scaffold
**Branch**: `phase-1-configuration`
**Date**: 2026-04-17
**Implementation lead**: Claude (executing on behalf of dohertj2)

## Entry conditions

| Check | Required | Actual | Pass |
|-------|----------|--------|------|
| Phase 0 exit gate cleared | Rename complete, all v1 tests pass under OtOpcUa names | Phase 0 merged to `v2` at commit `45ffa3e` | ✅ |
| `v2` branch is clean | Clean | Clean post-merge | ✅ |
| Phase 0 PR merged | — | Merged via `--no-ff` to v2 | ✅ |
| SQL Server 2019+ instance available | For development | NOT YET AVAILABLE — see deviation below | ⚠️ |
| LDAP/GLAuth dev instance available | For Admin auth integration testing | Existing v1 GLAuth at `C:\publish\glauth\` | ✅ |
| ScadaLink CentralUI source accessible | For parity reference | `C:\Users\dohertj2\Desktop\scadalink-design\` per memory | ✅ |
| Phase 1-relevant design docs reviewed | All read by impl lead | ✅ Read in preceding sessions | ✅ |
| Decisions read | #1–142 covered cumulatively | ✅ | ✅ |

## Deviation: SQL Server dev instance not yet stood up

The Phase 1 entry gate requires a SQL Server 2019+ dev instance for the `Configuration` project's EF Core migrations + tests. This is per `dev-environment.md` Step 1, which is currently TODO.

**Decision**: proceed with **Stream A only** (Core.Abstractions) in this continuation. Stream A has zero infrastructure dependencies — it's a `.NET 10` project with BCL-only references defining capability interfaces and DTOs. Streams B (Configuration), C (Core), D (Server), and E (Admin) all have infrastructure dependencies (SQL Server, GLAuth, Galaxy) and require the dev environment standup to be productive.

The SQL Server standup is a one-line `docker run` per `dev-environment.md` §"Bootstrap Order — Inner-loop Developer Machine" step 5. It can happen in parallel with subsequent Stream A work but is not a blocker for Stream A itself.

**This continuation will execute only Stream A.** Streams B–E require their own continuations after the dev environment is stood up.

## Phase 1 work scope (for reference)

Per `phase-1-configuration-and-admin-scaffold.md`:

| Stream | Scope | Status this continuation |
|--------|-------|--------------------------|
| **A. Core.Abstractions** | 11 capability interfaces + DTOs + DriverTypeRegistry | ▶ EXECUTING |
| B. Configuration | EF Core schema, stored procs, LiteDB cache, generation-diff applier | DEFERRED — needs SQL Server |
| C. Core | `LmxNodeManager → GenericDriverNodeManager` rename, `IAddressSpaceBuilder`, driver hosting | DEFERRED — depends on Stream A + needs Galaxy |
| D. Server | `Microsoft.Extensions.Hosting` host, credential-bound bootstrap | DEFERRED — depends on Stream B |
| E. Admin | Blazor Server scaffold mirroring ScadaLink | DEFERRED — depends on Stream B |

## Baseline metrics (carried from Phase 0 exit)

- **Total tests**: 822 (pass + fail)
- **Pass count**: 821 (improved from baseline 820 — one flaky test happened to pass at Phase 0 exit)
- **Fail count**: 1 (the second pre-existing failure may flap; either 1 or 2 failures is consistent with baseline)
- **Build warnings**: 30 (lower than original baseline 167)
- **Build errors**: 0

Phase 1 must not introduce new failures or new errors against this baseline.

## Signoff

Implementation lead: Claude (Opus 4.7) — 2026-04-17
Reviewer: pending — Stream A PR will require a second reviewer per overview.md exit-gate rules