Tracking: Create and Improve MAUI Experts and Prompts

This issue is for tracking work related to creating new MAUI expert prompts and improving the existing ones within the dotnet/maui-samples repository.

**Tasks may include:**
- Proposing, designing, and building new "expert" prompts that assist users in specific areas of MAUI.
- Enhancing existing expert prompts for clarity, coverage, and helpfulness.
- Reviewing community suggestions and feedback regarding expert prompt utility.
- Collecting, documenting, and iterating on use cases for MAUI assistant-type tools and workflows.

Please use this issue to report progress, discuss objectives, or suggest improvements, so that work around MAUI experts and prompt systems can be coordinated in one place.

No files, tests, or entry points are named. Start by selecting one specific MAUI expert prompt or use case from this tracking issue, then define its scope and acceptance criteria; the work is done when the prompt is created or improved and its usefulness is documented.

Written by the indexing model from the issue text.