add json schemas for apollo-router.yaml and supergraph.yaml

[phryneas]

Following up on our discussion from last week.

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[dylan-apollo]

Something I didn't consider, that we should test, is how this works with unstable router features. We have new config for Router 2.0, I wonder if that shows up as an error, with this change 😐

[phryneas]

Something I didn't consider, that we should test, is how this works with unstable router features. We have new config for Router 2.0, I wonder if that shows up as an error, with this change 😐

Two strategies come to mind:

• Have some "config-version" key in there and both versions in the schema as alternative schemas (maybe this could even reference two different urls? I'm not that deep in json schemas yet)
• We add another config for an apollo-router-2.yaml or similar.

[dylan-apollo]

@jerelmiller can we keep/merge the supergraph schema one (which pretty much never changes and should be safe) and just take out the Router config stuff for now? I don't think I'll have time to fix the red squigglies on connectors features before we want this released.

[phryneas]

@dylan-apollo I've reduced the scope to supergraph.yaml for now - should I get this in?