# Batch 19 Accounts Core Implementation Plan

> **For Codex:** REQUIRED SUB-SKILL: Use `executeplan` to implement this plan task-by-task.

**Goal:** Port and verify Batch 19 (`Accounts Core`) by implementing 92 `Account` features from `server/accounts.go` and porting 9 mapped tests without introducing stubs.

**Architecture:** Implement missing Batch 19 behavior directly in `Account.cs` in five feature groups (max 20 each), preserve existing lock/state patterns, and harden the 9 mapped backlog tests into real behavioral tests. Promote IDs through `stub -> complete -> verified` only with captured build/test evidence.

**Tech Stack:** .NET 10, C# latest, xUnit 3, Shouldly, NSubstitute, PortTracker CLI, SQLite (`porting.db`)

**Design doc:** `docs/plans/2026-02-27-batch-19-accounts-core-design.md`

---

## Batch 19 Scope

- Batch ID: `19`
- Name: `Accounts Core`
- Dependencies: batches `16`, `18`
- Go source: `golang/nats-server/server/accounts.go`
- Feature count: `92`
- Test count: `9`

Primary .NET files expected:

- `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/Account.cs`
- `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/AccountTypes.cs` (only if needed by real behavior)
- `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/AccountTests.Impltests.cs`
- `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/GatewayHandlerTests.Impltests.cs`
- `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/LeafNodeHandlerTests.Impltests.cs`
- `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/MessageTracerTests.Impltests.cs`

---

## MANDATORY VERIFICATION PROTOCOL

> **NON-NEGOTIABLE:** Every feature and test in this batch must follow this protocol.

### Per-Feature Verification Loop (REQUIRED for each feature ID)

1. Read feature metadata and Go source range:
   ```bash
   dotnet run --project tools/NatsNet.PortTracker -- feature show <feature_id> --db porting.db
   sed -n '<start_line>,<end_line>p' golang/nats-server/server/accounts.go
   ```
2. Implement the mapped C# method in `Account.cs` (or supporting type in `AccountTypes.cs` if strictly required).
3. Build immediately:
   ```bash
   dotnet build dotnet/
   ```
4. Run related tests immediately (smallest relevant filter first):
   ```bash
   dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~AccountTests"
   ```
5. If green, record feature ID in the current "complete-candidate" list.
6. If red, fix before touching next feature ID.

### Stub Detection Check (REQUIRED after each feature group and test class)

Run scan before status updates:

```bash
rg -n "(NotImplementedException|TODO|PLACEHOLDER|throw new Exception\\(\"TODO\"\\))" \
  dotnet/src/ZB.MOM.NatsNet.Server/Accounts/Account.cs \
  dotnet/src/ZB.MOM.NatsNet.Server/Accounts/AccountTypes.cs \
  dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/AccountTests.Impltests.cs \
  dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/GatewayHandlerTests.Impltests.cs \
  dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/LeafNodeHandlerTests.Impltests.cs \
  dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/MessageTracerTests.Impltests.cs

rg -n "^\\s*(public|internal|private)\\s+.*\\)\\s*\\{\\s*\\}$" \
  dotnet/src/ZB.MOM.NatsNet.Server/Accounts/Account.cs
```

Any new match in touched code must be fixed or explicitly deferred in PortTracker. No status promotion with unresolved stub hits.

### Build Gate (REQUIRED after each feature group)

```bash
dotnet build dotnet/
```

`Build succeeded` is required before moving any group IDs to `complete` or `verified`.

### Test Gate (REQUIRED before any feature ID is set to `verified`)

All related tests must pass:

```bash
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ZB.MOM.NatsNet.Server.Tests.AccountTests"
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ZB.MOM.NatsNet.Server.Tests.ImplBacklog.AccountTests"
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ZB.MOM.NatsNet.Server.Tests.ImplBacklog.GatewayHandlerTests"
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ZB.MOM.NatsNet.Server.Tests.ImplBacklog.LeafNodeHandlerTests"
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ZB.MOM.NatsNet.Server.Tests.ImplBacklog.MessageTracerTests"
```

Do not mark features `verified` until the 9 mapped Batch 19 tests are real and passing.

### Status Update Protocol (REQUIRED)

- Max `15` IDs per `feature batch-update` or `test batch-update` call.
- Required sequence:
  - `not_started/deferred -> stub` when you begin active work.
  - `stub -> complete` only after per-feature loop + group build/test pass.
  - `complete -> verified` only after full test gate and evidence capture.
- Evidence required for each update chunk:
  - last successful build output summary
  - last related test output summary
  - stub scan output (`0` unresolved matches for touched code)

### Checkpoint Protocol Between Tasks (REQUIRED)

At end of each task group (before starting next):

1. Run full build:
   ```bash
   dotnet build dotnet/
   ```
2. Run unit tests:
   ```bash
   dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/
   ```
3. Commit checkpoint:
   ```bash
   git add dotnet/src/ZB.MOM.NatsNet.Server/Accounts dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog porting.db
   git commit -m "<task-specific message>"
   ```
4. Continue only if build green and no new failing tests.

---

## ANTI-STUB GUARDRAILS (NON-NEGOTIABLE)

### Forbidden Patterns

These patterns are forbidden in completed Batch 19 features/tests:

- `throw new NotImplementedException()`
- Empty method bodies (`{ }`) for mapped feature methods
- Placeholder tests that only assert constants unrelated to Account behavior
- `Assert.True(true)` or equivalent always-pass assertion
- `// TODO` or `// PLACEHOLDER` in newly ported feature/test bodies
- Returning hardcoded defaults (`false`, `null`, `0`, `string.Empty`) where Go behavior is non-trivial

### Hard Limits

- Maximum `20` features per implementation task group.
- Maximum `15` IDs per status update call.
- One feature group at a time; no parallel status promotion.
- No `verified` status updates while any mapped Batch 19 test ID remains deferred/stub without explicit blocker reason.

### If You Get Stuck

1. Stop the current feature/test ID immediately.
2. Revert any partial placeholder code for that ID.
3. Keep or set status to `deferred` with explicit reason:
   ```bash
   dotnet run --project tools/NatsNet.PortTracker -- feature update <id> --status deferred --override "blocked: <specific reason>" --db porting.db
   dotnet run --project tools/NatsNet.PortTracker -- test update <id> --status deferred --override "blocked: <specific reason>" --db porting.db
   ```
4. Move to the next unblocked ID.
5. Never introduce stubs just to keep momentum.

---

## Feature Group Map (Max 20 per Task)

### Group 1 (17 IDs): Trace, Counters, Interest, Leaf Cluster, Base Service Exports

`152,153,154,170,176,189,190,192,193,194,198,199,200,201,202,203,204`

### Group 2 (20 IDs): Latency Send Paths, Service Import Cycle Checks, Pending Counters

`210,211,212,213,214,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230`

### Group 3 (20 IDs): Service Import Mutation, Reverse Reply Map, Internal Subs, Response Processing

`231,232,233,234,235,236,237,238,239,240,241,243,244,245,246,247,248,249,254,255`

### Group 4 (20 IDs): Reply Generation, Thresholds, Resp Imports, Stream Import/Export Wiring

`257,262,263,264,265,266,267,268,269,270,271,272,273,274,275,276,280,281,282,283`

### Group 5 (15 IDs): Activation/Issuer/Auth Tail

`284,286,287,294,295,301,302,303,304,305,311,312,313,314,315`

---

## Task 1: Preflight and Batch Start

**Files:**
- Read: `docs/standards/dotnet-standards.md`
- Read: `golang/nats-server/server/accounts.go`
- Read: `docs/plans/2026-02-27-batch-19-accounts-core-design.md`

**Step 1: Validate dependencies and batch status**

```bash
dotnet run --project tools/NatsNet.PortTracker -- batch show 19 --db porting.db
dotnet run --project tools/NatsNet.PortTracker -- batch list --db porting.db
```

Expected: Batch 19 shown with dependencies `16,18`.

**Step 2: Start the batch**

```bash
dotnet run --project tools/NatsNet.PortTracker -- batch start 19 --db porting.db
```

Expected: batch moves to `in_progress` (or clear dependency failure if blocked).

**Step 3: Baseline build and tests**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/
```

Expected: capture baseline pass/fail before edits.

**Step 4: Commit checkpoint**

```bash
git add porting.db
git commit -m "chore(batch19): start accounts core batch"
```

---

## Task 2: Implement Group 1 Features (17 IDs)

**Files:**
- Modify: `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/Account.cs`
- Optional modify: `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/AccountTypes.cs`
- Related tests: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/Accounts/AccountTests.cs`

**Step 1: Mark Group 1 as `stub` in max-15 chunks**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "152,153,154,170,176,189,190,192,193,194,198,199,200,201,202" --set-status stub --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "203,204" --set-status stub --db porting.db --execute
```

**Step 2: Run per-feature loop for all 17 IDs**

For each ID: `feature show` -> read Go lines -> implement C# -> `dotnet build` -> run related tests.

**Step 3: Group gate**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ZB.MOM.NatsNet.Server.Tests.AccountTests"
```

**Step 4: Stub detection scan**

Run the required scan commands from the mandatory protocol.

**Step 5: Mark Group 1 as `complete` in max-15 chunks**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "152,153,154,170,176,189,190,192,193,194,198,199,200,201,202" --set-status complete --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "203,204" --set-status complete --db porting.db --execute
```

**Step 6: Checkpoint**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/
git add dotnet/src/ZB.MOM.NatsNet.Server/Accounts porting.db
git commit -m "feat(batch19): implement account trace/counter/export core methods"
```

---

## Task 3: Implement Group 2 Features (20 IDs)

**Files:**
- Modify: `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/Account.cs`
- Optional modify: `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/AccountTypes.cs`
- Related tests: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/Accounts/AccountTests.cs`

**Step 1: Mark Group 2 as `stub` in max-15 chunks**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "210,211,212,213,214,216,217,218,219,220,221,222,223,224,225" --set-status stub --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "226,227,228,229,230" --set-status stub --db porting.db --execute
```

**Step 2: Run per-feature loop for all 20 IDs**

Implement and verify each ID individually.

**Step 3: Group gate**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ZB.MOM.NatsNet.Server.Tests.AccountTests"
```

**Step 4: Stub detection scan**

Run required scan commands.

**Step 5: Mark Group 2 as `complete`**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "210,211,212,213,214,216,217,218,219,220,221,222,223,224,225" --set-status complete --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "226,227,228,229,230" --set-status complete --db porting.db --execute
```

**Step 6: Checkpoint**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/
git add dotnet/src/ZB.MOM.NatsNet.Server/Accounts porting.db
git commit -m "feat(batch19): implement account latency and import-cycle methods"
```

---

## Task 4: Implement Group 3 Features (20 IDs)

**Files:**
- Modify: `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/Account.cs`
- Optional modify: `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/AccountTypes.cs`
- Related tests: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/AccountTests.Impltests.cs`

**Step 1: Mark Group 3 as `stub` in max-15 chunks**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "231,232,233,234,235,236,237,238,239,240,241,243,244,245,246" --set-status stub --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "247,248,249,254,255" --set-status stub --db porting.db --execute
```

**Step 2: Run per-feature loop for all 20 IDs**

Implement and verify each ID individually.

**Step 3: Group gate**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ImplBacklog.AccountTests"
```

**Step 4: Stub detection scan**

Run required scan commands.

**Step 5: Mark Group 3 as `complete`**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "231,232,233,234,235,236,237,238,239,240,241,243,244,245,246" --set-status complete --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "247,248,249,254,255" --set-status complete --db porting.db --execute
```

**Step 6: Checkpoint**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/
git add dotnet/src/ZB.MOM.NatsNet.Server/Accounts porting.db
git commit -m "feat(batch19): implement service import maps and response subscription methods"
```

---

## Task 5: Implement Group 4 Features (20 IDs)

**Files:**
- Modify: `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/Account.cs`
- Optional modify: `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/AccountTypes.cs`
- Related tests: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/AccountTests.Impltests.cs`
- Related tests: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/GatewayHandlerTests.Impltests.cs`
- Related tests: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/LeafNodeHandlerTests.Impltests.cs`

**Step 1: Mark Group 4 as `stub` in max-15 chunks**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "257,262,263,264,265,266,267,268,269,270,271,272,273,274,275" --set-status stub --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "276,280,281,282,283" --set-status stub --db porting.db --execute
```

**Step 2: Run per-feature loop for all 20 IDs**

Implement and verify each ID individually.

**Step 3: Group gate**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ImplBacklog.AccountTests"
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ImplBacklog.GatewayHandlerTests"
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ImplBacklog.LeafNodeHandlerTests"
```

**Step 4: Stub detection scan**

Run required scan commands.

**Step 5: Mark Group 4 as `complete`**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "257,262,263,264,265,266,267,268,269,270,271,272,273,274,275" --set-status complete --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "276,280,281,282,283" --set-status complete --db porting.db --execute
```

**Step 6: Checkpoint**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/
git add dotnet/src/ZB.MOM.NatsNet.Server/Accounts porting.db
git commit -m "feat(batch19): implement service reply and stream import/export methods"
```

---

## Task 6: Implement Group 5 Features (15 IDs)

**Files:**
- Modify: `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/Account.cs`
- Optional modify: `dotnet/src/ZB.MOM.NatsNet.Server/Accounts/AccountTypes.cs`
- Related tests: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/MessageTracerTests.Impltests.cs`

**Step 1: Mark Group 5 as `stub`**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "284,286,287,294,295,301,302,303,304,305,311,312,313,314,315" --set-status stub --db porting.db --execute
```

**Step 2: Run per-feature loop for all 15 IDs**

Implement and verify each ID individually.

**Step 3: Group gate**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ImplBacklog.MessageTracerTests"
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ZB.MOM.NatsNet.Server.Tests.AccountTests"
```

**Step 4: Stub detection scan**

Run required scan commands.

**Step 5: Mark Group 5 as `complete`**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "284,286,287,294,295,301,302,303,304,305,311,312,313,314,315" --set-status complete --db porting.db --execute
```

**Step 6: Checkpoint**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/
git add dotnet/src/ZB.MOM.NatsNet.Server/Accounts porting.db
git commit -m "feat(batch19): implement activation, issuer, and external auth account methods"
```

---

## Task 7: Port and Verify Batch 19 Tests (9 IDs)

**Files:**
- Modify: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/AccountTests.Impltests.cs` (IDs `81,82,95`)
- Modify: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/GatewayHandlerTests.Impltests.cs` (IDs `658,666`)
- Modify: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/LeafNodeHandlerTests.Impltests.cs` (IDs `1935,1952,1955`)
- Modify: `dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog/MessageTracerTests.Impltests.cs` (ID `2359`)

**Step 1: Mark test IDs as `stub`**

```bash
dotnet run --project tools/NatsNet.PortTracker -- test batch-update --ids "81,82,95,658,666,1935,1952,1955,2359" --set-status stub --db porting.db --execute
```

**Step 2: Per-test loop for all 9 IDs**

For each test ID: `test show` -> read Go test -> port C# method -> run single-test filter -> capture pass.

**Step 3: Run class-level test gates**

```bash
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ImplBacklog.AccountTests"
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ImplBacklog.GatewayHandlerTests"
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ImplBacklog.LeafNodeHandlerTests"
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ --filter "FullyQualifiedName~ImplBacklog.MessageTracerTests"
```

**Step 4: Run stub detection scan on touched test files**

Run required scan commands.

**Step 5: Mark tests as `verified`**

```bash
dotnet run --project tools/NatsNet.PortTracker -- test batch-update --ids "81,82,95,658,666,1935,1952,1955,2359" --set-status verified --db porting.db --execute
```

**Step 6: Checkpoint**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/
git add dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog porting.db
git commit -m "test(batch19): port accounts core mapped tests"
```

---

## Task 8: Promote Features to Verified and Complete Batch 19

**Files:**
- Modify: `porting.db`

**Step 1: Re-run full build and all related test gates**

```bash
dotnet build dotnet/
dotnet test dotnet/tests/ZB.MOM.NatsNet.Server.Tests/
```

**Step 2: Promote Group 1 and Group 2 features to `verified` (max-15 chunks)**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "152,153,154,170,176,189,190,192,193,194,198,199,200,201,202" --set-status verified --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "203,204,210,211,212,213,214,216,217,218,219,220,221,222,223" --set-status verified --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "224,225,226,227,228,229,230" --set-status verified --db porting.db --execute
```

**Step 3: Promote Group 3 and Group 4 features to `verified` (max-15 chunks)**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "231,232,233,234,235,236,237,238,239,240,241,243,244,245,246" --set-status verified --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "247,248,249,254,255,257,262,263,264,265,266,267,268,269,270" --set-status verified --db porting.db --execute
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "271,272,273,274,275,276,280,281,282,283" --set-status verified --db porting.db --execute
```

**Step 4: Promote Group 5 features to `verified`**

```bash
dotnet run --project tools/NatsNet.PortTracker -- feature batch-update --ids "284,286,287,294,295,301,302,303,304,305,311,312,313,314,315" --set-status verified --db porting.db --execute
```

**Step 5: Final batch complete validation**

```bash
dotnet run --project tools/NatsNet.PortTracker -- batch complete 19 --db porting.db
dotnet run --project tools/NatsNet.PortTracker -- report summary --db porting.db
```

**Step 6: Final checkpoint commit**

```bash
git add porting.db dotnet/src/ZB.MOM.NatsNet.Server/Accounts dotnet/tests/ZB.MOM.NatsNet.Server.Tests/ImplBacklog
git commit -m "feat(batch19): complete and verify accounts core"
```