# Product Implementation Completeness Gate — Cycle 4

**Date**: 2026-05-12
**Cycle**: 4
**Verdict**: **PASS**

## Scope

Cycle 4 contained a single product implementation task: **AZ-500 — .NET 8 → .NET 10 migration**.

This is a runtime / SDK / dependency-version migration with **no new product behaviour** added. The existing API surface, JWT contract, tile-storage contract, and all documented endpoints continue to function unchanged.

## Per-Task Audit

### AZ-500 — .NET 8 → .NET 10 migration → **PASS**

**Promises (from task spec)**:

| Section | Promise | Implemented? | Evidence |
|---------|---------|--------------|----------|
| Outcome | All 9 csproj target net10.0 | YES | `grep -r "<TargetFramework>" --include="*.csproj"` → 9/9 net10.0 |
| Outcome | global.json sdk.version=10.0.0 / latestMinor | YES | `cat global.json` |
| Outcome | All Dockerfiles + scripts on `:10.0` | YES | `grep -rE "mcr.microsoft.com/dotnet/" --include="*Dockerfile" --include="*.yml" --include="*.sh"` → 7/7 on `:10.0` |
| Outcome | M.AspNetCore.Authentication.JwtBearer + M.AspNetCore.OpenApi + Serilog.AspNetCore + every M.Extensions.* on matching 10.x | PARTIAL — Serilog.AspNetCore at `8.0.3` (documented per Risk #4 mitigation) | csproj + AGENTS.md:244 |
| Outcome | Full unit + integration test suite passes | YES | `./scripts/run-tests.sh --full` exit 0; 271/271 unit + full integration green |
| Outcome | docker-compose build succeeds; API serves on :18980 | YES | `docker compose up -d --build` succeeded; anonymous request → HTTP 401, swagger → HTTP 200 |
| Outcome | Cycle-3 perf-harness leftover replayed at Step 15 | DEFERRED to Step 15 of cycle 4 (per Constraints last bullet). Bootstrap-only smoke completed during AC-5; full perf gate runs at Step 15. Leftover updated with new (non-SDK) failure mode. | `_docs/_process_leftovers/2026-05-12_perf-cycle3-harness-execution.md` (replay #2 section) |
| Outcome | architecture.md + AGENTS.md reflect .NET 10 | YES | Both files updated; grep shows .NET 10 / ASP.NET Core 10 references; no leftover `.NET 8.0` framework-version mentions |

**Unresolved scaffold / stub / placeholder scan**:

```
grep -rE "(NotImplemented|placeholder|scaffold|native bridge|TODO|deterministic fallback|fake runner)" \
  SatelliteProvider.Api/Program.cs SatelliteProvider.Api/Swagger/ParameterDescriptionFilter.cs
```

→ Only pre-existing matches on `MGRS-based tile retrieval is not implemented` (already a documented 501 stub from prior cycles, NOT introduced by AZ-500). No new scaffolds, stubs, placeholders, or "bridge to be supplied later" markers introduced by this task.

**Named runtime dependency integration check**:

The task names these runtime dependencies — all integrated as production behaviour, not interfaces or fakes:

| Dependency | Promised | Actually integrated? | Where |
|-----------|----------|----------------------|-------|
| .NET 10 runtime | YES | YES — production app builds + runs against net10.0 in `mcr.microsoft.com/dotnet/aspnet:10.0` | API container, all 9 projects |
| ASP.NET Core 10 minimal API | YES | YES — `Program.cs` continues to use minimal-API endpoint mapping | `Program.cs:174–219` |
| Microsoft.AspNetCore.Authentication.JwtBearer 10.0.7 | YES | YES — `AddSatelliteJwt` registers JwtBearer; AZ-487/AZ-494 integration tests pass against the migrated build | `SatelliteProvider.Api/Authentication/AuthenticationServiceCollectionExtensions.cs` (untouched) + integration test PASS markers in run-tests.sh log |
| Microsoft.AspNetCore.OpenApi 10.0.7 + Microsoft.OpenApi 2.4.1 | YES | YES — Swagger endpoint serves; integration test "✓ Swagger document declares Bearer (http, bearer, JWT)" PASSED; manual probe → HTTP 200 | `Program.cs:97–140` |
| Microsoft.Extensions.* 10.0.7 (Caching.Memory, Configuration.*, DependencyInjection.*, Hosting.Abstractions, Http, Logging.*, Options.*) | YES | YES — every consuming service still instantiates and runs (integration suite covers TileService, RegionService, RouteService, UavTileUploadHandler) | per-component csproj refs |
| Serilog.AspNetCore 10.0 | NO (fallback to 8.0.3 per Risk #4) | YES — production logging continues to work on .NET 10; integration test logs in API container show structured log output | `Program.cs:24–25`, AGENTS.md:244 |

**Internal vs external classification**:

All promises are INTERNAL (build configuration, package versions, Docker base images, runtime SDK, documentation). There are no EXTERNAL prerequisites that could BLOCK this task — no new hardware, licensed dataset, third-party service credential, or unavailable cross-team artifact.

**Test path exercises real implementation**:

| Test | Exercises real implementation? |
|------|--------------------------------|
| 271 unit tests in `SatelliteProvider.Tests` | YES — all tests build against net10.0 and run against the migrated `Microsoft.AspNetCore.*` / `Microsoft.Extensions.*` packages. No mocks substituted for the framework. |
| Integration suite (JWT, UAV upload, tile download, region processing, route management, geofence) | YES — integration test container runs against the live API container which is built FROM `mcr.microsoft.com/dotnet/aspnet:10.0`. Real PostgreSQL, real Google Maps API session token, real JWT validation. |
| AC-5 perf-bootstrap smoke (`PERF_REPEAT_COUNT=2 PERF_UAV_BATCH_SIZE=2`) | YES — `dotnet build SatelliteProvider.IntegrationTests --configuration Release` ran on the host's .NET 10 SDK; PT-01..PT-07 hit the live API on :18980 via authenticated curl. |

**End-to-end pipeline check**:

The architecture promises a full HTTP API → Service → DataAccess → PostgreSQL pipeline. Verified end-to-end by:

1. `docker compose up -d --build` brings up `satellite-provider-postgres` (healthy) + `satellite-provider-api` (started)
2. API serves `/swagger` (HTTP 200) and rejects anonymous `/api/satellite/region/<id>` with HTTP 401
3. Integration tests authenticate with a JwtTokenFactory-minted token and successfully POST regions, watch them transition to Completed via the background hosted service, and read back generated CSV/summary/stitched files
4. PT-01..PT-07 also exercise the same end-to-end pipeline with real Google Maps tile downloads

No stage of the pipeline is mocked or short-circuited.

## Classification

| Task | Classification |
|------|----------------|
| AZ-500 | **PASS** |

No FAIL. No BLOCKED.

## Remediation Tasks

None required. The two Medium findings from the code review (`WithOpenApi` deprecation; CS8604 nullable in `ParameterDescriptionFilter.cs`) are **out of AZ-500's behaviour-preservation scope** and are flagged in the review report as recommended follow-up PBIs (cycle 5 candidates). Per `coderule.mdc` "scope discipline" — they do NOT block AZ-500 closure. The PT-08 grep-pipefail bug is a pre-existing script bug (not introduced by AZ-500) and is recorded in the perf-cycle3 leftover.

## Gate Decision

**Continue to Step 16 (Final Test Run handoff).**
