semi implemented and features implemented save checkpoint

docs/implplan-blocked/audits/csproj-standards/Router/examples/Examples.NotificationService/Examples.NotificationService.md

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+# Audit - Examples.NotificationService
+
+## Project
+- Path: `src/Router/examples/Examples.NotificationService/Examples.NotificationService.csproj`
+- Module: `Router`
+- Kind: `Service`
+- SDK: `Microsoft.NET.Sdk`
+- TargetFramework: `net10.0`
+- Audit date (UTC): 2026-01-30
+
+## Coding Standards Findings
+- Status: FAIL
+- Nullable: enable
+- TreatWarningsAsErrors: inherited true
+- Deterministic: inherited true
+- 100-line rule violations: 7
+- Service locator usage (BuildServiceProvider/GetService): 0
+- Analyzer enforcement: missing repo-wide (see summary).
+
+### Details
+- 100-line files:
+  - `src/Router/examples/Examples.NotificationService/Endpoints/SubscribeNotificationsEndpoint.cs` (256 lines)
+  - `src/Router/examples/Examples.NotificationService/Endpoints/BroadcastNotificationEndpoint.cs` (221 lines)
+  - `src/Router/examples/Examples.NotificationService/Endpoints/SendTemplatedNotificationEndpoint.cs` (194 lines)
+  - `src/Router/examples/Examples.NotificationService/Models/Notification.cs` (171 lines)
+  - `src/Router/examples/Examples.NotificationService/Endpoints/GetNotificationsEndpoint.cs` (150 lines)
+  - `src/Router/examples/Examples.NotificationService/Endpoints/UpdatePreferencesEndpoint.cs` (133 lines)
+  - `src/Router/examples/Examples.NotificationService/Endpoints/SendNotificationEndpoint.cs` (128 lines)
+- Service locator matches:
+  - none
+
+### Fix Guidance
+- Split files over 100 lines into smaller types or partials.
+
+## Testing Fullness Findings
+- Status: FAIL
+- Expected layers: Unit
+- Detected test projects: none
+- Missing layers: Unit
+
+### Manual checks required
+- Observability contract tests for WebService/Worker.
+- Offline execution (tests must run without network access).
+
+### Fix Guidance
+- Add a unit test project named `<Project>.Tests` (or document exception).