[Knowledge] nsg-pe: ## Advisory Notes — Stage 1: Managed Identity - **[Stabilit...

## Knowledge Contribution

**Type:** New service
**File:** `knowledge/services/nsg-pe.md`
**Status:** NEW FILE — this knowledge file does not exist yet and must be created

### Context
## Advisory Notes — Stage 1: Managed Identity

- **[Stability]** The identity module uses API version `2023-07-31-preview`; preview APIs may introduce breaking changes or be retired — consider pinning to the GA version `2023-01-31` for production deployments.

- **[Security]** Deployment outputs (client ID, principal ID) are written to a local JSON file with no access controls; in CI/CD pipelines, prefer storing these in a Key Vault or using deployment output references directly to avoid credent

### Rationale
## Advisory Notes — Stage 1: Managed Identity

- **[Stability]** The identity module uses API version `2023-07-31-preview`; preview APIs may introduce breaking changes or be retired — consider pinning to the GA version `2023-01-31` for production deployments.

- **[Security]** Deployment outputs (client ID, principal ID) are written to a local JSON file with no access controls; in CI/CD pipelines, prefer storing these in a Key Vault or using deployment output references directly to avoid credent

### Content to Add
```
## Advisory Notes — Stage 1: Managed Identity

- **[Stability]** The identity module uses API version `2023-07-31-preview`; preview APIs may introduce breaking changes or be retired — consider pinning
```

### Source
Build advisory review

### Required Knowledge File Sections
The new knowledge file MUST include ALL of these sections:
1. **Description** (one-line summary)
2. **When to Use** (scenarios and selection criteria)
3. **POC Defaults** (default SKU, tier, configuration)
4. **Terraform Patterns** (azapi_resource with RBAC)
5. **Bicep Patterns** (ARM template resources)
6. **Application Code** (Python, C#, Node.js — where applicable)
7. **Common Pitfalls** (deployment failures, misconfigurations)
8. **Production Backlog Items** (what changes for production)

Create knowledge/services/nsg-pe.md and use the issue's advisory notes as the starting context. Work through the eight required sections, including Terraform and Bicep patterns and applicable Python, C#, and Node.js guidance. Done means the new knowledge file contains all listed sections and covers the managed identity stability and security notes.

Written by the indexing model from the issue text.