Merge the release into the backup health work and read the real dump health

The readiness model now takes the database dump's state from
getDatabaseBackupHealth, and the dump test reaches the off-host key id
where it moved.

src/lib/openapi/routes/integrations.ts

@@ -75,10 +75,12 @@ const healthKitEntry = z
       "One resolved HealthKit metric mapping (defaults merged with the user's stored overrides).",
   });
 
-// The health-shaped fields that predate `health` (v1.42.4). They stay on the
-// wire through v1.43 so App 1.2.0 keeps decoding, are marked deprecated in the
-// document, and go in v1.44.
-const LEGACY_HEALTH_FIELD = "Deprecated: removed in v1.44, read `health`.";
+// The health-shaped fields that predate `health`. They are marked deprecated
+// in the document and stay on the wire: native builds from before `health`
+// still decode them, the current one falls back to them only against a server
+// that sends no `health`, and the web card's copied diagnostics read the
+// failure streak. No removal release is set.
+const LEGACY_HEALTH_FIELD = "Deprecated, still served: read `health`.";
 
 function legacy(text?: string): { deprecated: true; description: string } {
   return {
@@ -1184,7 +1186,7 @@ const integrationEnvelopeEntry = z
     health: connectionHealth
       .nullable()
       .describe(
-        "The unified connection state, null when the provider is not connected (and for Fitbit once `retirement.ended`). It supersedes `state`, `lastError`, `consecutiveFailuresByKind`, `syncHealth`, `tokenExpired`, `needsReauth`, `hasActivityScope`, `planUnavailable` and `scopeReconnect` on this entry; those nine are deprecated and removed in v1.44.",
+        "The unified connection state, null when the provider is not connected (and for Fitbit once `retirement.ended`). It supersedes `state`, `lastError`, `consecutiveFailuresByKind`, `syncHealth`, `tokenExpired`, `needsReauth`, `hasActivityScope`, `planUnavailable` and `scopeReconnect` on this entry; those nine are deprecated and still served for clients that predate `health`.",
       ),
   })
   .meta({