Serve an OpenAccess descriptor at /.well-known/openaccess.json (#159)

Lists LogicSRC on OpenAccess hubs (openaccess.logicsrc.com) so people can
link it with OAuth 2.1 + PKCE and it honours the shared
profullstack.com/all-access entitlement. The Ed25519 public key here is
the app's credential for reporting sales; the private half is in the
logicsrc teams vault openaccess-app-keys--prod. Scopes are empty for now:
the reserved openid, email and entitlements scopes need no listing.

Spec: https://logicsrc.com/openaccess


Claude-Session: https://claude.ai/code/session_01SWRffW4ifQPUrGXJtgYWMd

Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>

apps/logicsrc-web/public/.well-known/openaccess.json

@@ -0,0 +1,29 @@
+{
+  "openaccess": "0.1",
+  "name": "LogicSRC",
+  "url": "https://logicsrc.com",
+  "operator": "https://logicsrc.com/.well-known/openprofile.md",
+  "redirect_uris": [
+    "https://logicsrc.com/api/v1/openaccess/callback"
+  ],
+  "jwks": {
+    "keys": [
+      {
+        "kty": "OKP",
+        "crv": "Ed25519",
+        "kid": "zQIbsqDH0Y45",
+        "x": "7I2TEE8GQKJFROunFb28eGjdfUOS1tVqXS6xdDl3yNk",
+        "alg": "EdDSA",
+        "use": "sig"
+      }
+    ]
+  },
+  "scopes": {},
+  "honours": [
+    "profullstack.com/all-access"
+  ],
+  "webhooks": "https://logicsrc.com/api/v1/openaccess/events",
+  "hubs": [
+    "https://openaccess.logicsrc.com"
+  ]
+}