Consider adding cursor rules to the repo for better contribution

[raythurnvoid]

Describe the problem

It would help maintaining consistency and make the AI aware of how the repo is structured and eventually gotchas when modifying certain parts

Describe the proposed solution

It's possible to create the following rule files:

• workflow-contributing-debugging.mdc: similar to CONTRIBUTING.md with the addition of steps to ease the debugging of svelte eg (link the svelte repo to a local folder to troubleshoot the resolution of a bug)
• workflow-testing.mdc: how tests are structured, how to run them.
• code-tests.mdc: patterns to follow when production or changing tests.
• code-svelte.mdc: pattern to follow in the main code and performance considerations eg: let vs var.
• code-reactivity.mdc: explaination on how the reactive system work and gotchas when changing it and performance tips
• code-compiler.mdc: same as signal but for compiler stuff

The list can keep expanding and can touch all the LSP stuff and the CLI and the lints and you can just keep going.

Importance

nice to have

[paoloricciuti]

Can you copy this over to #14230 and close this issue? This way we can have a coherent list in one single issue. Thanks for the idea (now let's try to find the time to actually write something 😵)