[Rust-DP] Validate SDK generation tool and build tool

### 📌 Task
Validate the **SDK generation and build tools** of the `azsdk-cli` tool for **.NET data plane SDK**.

---

### 🔧 Tools & Commands

**SDK Generation**
- Tool: `azsdk_package_generate_code`
- CLI: `azsdk package source-code generate`
- Input: Users must provide either:
- Path to a `tsp-location.yaml`, **or**
- Path to a `tspconfig.yaml`

**SDK Build**
- Tool: `azsdk_package_build_code`
- CLI: `azsdk package source-code build`
- Input: Users must provide the `packagePath`.

---

### ✅ Goal
Ensure both the **generate** and **build** commands:
- Accept the expected inputs.
- Run successfully in different environments.
- Produce a clear result: success or fail with detailed reasons.

Refer to [these common instructions](https://github.com/Azure/azure-sdk-tools/blob/main/eng/common/instructions/azsdk-tools/local-sdk-workflow.instructions.md) for local SDK workflow. Each language repo should update copilot instructions to reference these common instructions.