fix: publish /invite/* in AASA + serve assetlinks.json under .well-known/

[dcadenas]

Part of divinevideo/divine-mobile#3697.

Two related fixes — same repo, same deploy.

1. Add /invite/* to the iOS AASA

File: public/.well-known/apple-app-site-association

Append to applinks.details[0].components:

{ "/": "/invite/*", "comment": "Invite redemption deep links" }

Without this, iOS won't hand /invite/{code} to the app even when the app declares applinks:divine.video (which it already does in Runner.entitlements).

2. Fix assetlinks.json 404 at .well-known/

Currently:

• https://divine.video/.well-known/assetlinks.json → 404
• https://divine.video/apple-app-site-association → 200 (served at root, not .well-known)

iOS tolerates either path; Android requires .well-known/assetlinks.json. The file exists in public/.well-known/assetlinks.json and _headers declares the Content-Type, but the live URL is not serving it. Investigate the Fastly Compute publisher's path-routing for .well-known/* and make it actually serve.

Acceptance

• curl -s https://divine.video/.well-known/apple-app-site-association returns 200 JSON containing /invite/*.
• curl -s https://divine.video/.well-known/assetlinks.json returns 200 JSON with the existing app cert fingerprints.
• Apple's AASA validator and Google's Digital Asset Links validator both pass for divine.video.

[DSanich]

@dcadenas @rabble @NotThatKindOfDrLiz @jalcine I'll work on it

[DSanich]

@jalcine @dcadenas @NotThatKindOfDrLiz I have completed work on this fix. Could you please review it?