[Typescript Conversion] SPIKE: Spike on using AI to help with Typescript Migration

### What is this about?

We should do a timeboxed spike on using AI to help with Typescript migrations.

This is very open ended such that who ever picks this up can experiment and try possible things. The output from the spike should be some recommended ways we can use AI to help with this. That could be anything from a custom gpt that takes a file, converts and spits it out to instructions for how to use cursor effectively to speed up the process

@davidmurdoch and @dbrans should please add any ideas here.

### Scenario

n/a

### Design

n/a

### Technical Details

n/a

### Threat Modeling Framework

n/a

### Acceptance Criteria

- Anything helpful

### Stakeholder review needed before the work gets merged

- [x] Engineering (needed in most cases)
- [ ] Design
- [ ] Product
- [ ] QA (automation tests are required to pass before merging PRs but not all changes are covered by automation tests - please review if QA is needed beyond automation tests)
- [ ] Security
- [ ] Legal
- [ ] Marketing
- [ ] Management (please specify)
- [ ] Other (please specify)

### References

_No response_

Start by defining the timebox and a small TypeScript migration scenario to evaluate. Compare approaches such as a custom GPT that converts a file and instructions for using Cursor effectively. Done means documenting practical, recommended ways AI can speed up the migration.

Written by the indexing model from the issue text.