feat: sync watcher exclusions with tsconfig.json

[xakdog]

Goal

Simplify configuration for mono repos with Keel and front-end projects

Problem

1. Keel requires schema.keel at the project root in mono repos
2. To prevent Keel from treating front-end JS as functions, we exclude directories in tsconfig.json
3. However, the watcher still triggers on these excluded directories

Solution

Make the watcher respect exclude paths from tsconfig.json

Note

This change only affects watcher behavior, not compilation or deployment processes

[RutZap]

@xakdog Thank you so much for contributing! We really like the approach and picking up the exclude paths from tsconfig is great.

I've had a quick play with this and it seems that there are some issues with the pattern matching; keel allows us to pass a base path to the project as a cli arg; e.g. keel run -d ./../../path/to/project. When using it like so, it seems that the watcher fails to ignore the .build folder which then it causes it to get stuck in a continuous rebuild loop. I'm not 100% sure what the fix is at the moment; as soon as we fix this issue we'll look at merging this through.