It is now possible to add and update sources via client side scraping.
For that a new edge function `add-or-update-source-v1` was added and the
old `add-source-v1` function was deprecated.
The new function accepts a new `feedData` field, which can contain the
feed for a source. If the field is provided we will not try to get the
feed for a source within our edge function and instead use the provided
data.
Currently this function is only used to add a Reddit source. Later we
plan to extend it for other sources and want to use it to update source
via the app, when the source provider makes heavy use of rate limiting.
This commit refactors the existing tools, by moving the tools logic to a
new `tools.ts` file, so that the main `cmd.ts` file remains clear.
Besides that we also add a new tool `get-feed` which can be used to run
the `getFeed` function from the command line. The function is called
with a source and returns the generated source and items, as they are
saved in the database by the `add-source-v1` Supabase edge function.
This commit improve the error handling for the edge function to add a
new source and the worker, so that we get more insights why a request
fails. A user will now also get a more detailed error why a source could
not be added.
