refactor(controlplane): remove NATS backend from JWT claims and memberships caches

These two short-lived caches (10s and 1s TTL) now use in-memory storage
only, reducing dependency on NATS for caches where distributed
invalidation provides little benefit.

Signed-off-by: Miguel Martinez Trivino <miguel@chainloop.dev>

Author: migmartri

app/controlplane/cmd/wire.go

@@ -146,28 +146,16 @@ var cacheProviderSet = wire.NewSet(
 	attestationbundle.New,
 )
 
-func newClaimsCache(ctx context.Context, rc *natsconn.ReloadableConnection, logger log.Logger) (cache.Cache[*jwt.MapClaims], error) {
+func newClaimsCache(logger log.Logger) (cache.Cache[*jwt.MapClaims], error) {
 	l := log.NewHelper(logger)
-	backend := "memory"
 	opts := []cache.Option{cache.WithTTL(10 * time.Second), cache.WithLogger(l), cache.WithDescription("Cache for JWT claims")}
-	if rc != nil {
-		backend = "nats"
-		opts = append(opts, cache.WithNATS(rc.Conn, "chainloop-jwt-claims"))
-		opts = append(opts, cache.WithReconnect(rc.Subscribe(ctx)))
-	}
-	l.Infow("msg", "cache initialized", "bucket", "chainloop-jwt-claims", "backend", backend, "ttl", "10s")
+	l.Infow("msg", "cache initialized", "backend", "memory", "ttl", "10s")
 	return cache.New[*jwt.MapClaims](opts...)
 }
 
-func newMembershipsCache(ctx context.Context, rc *natsconn.ReloadableConnection, logger log.Logger) (cache.Cache[*entities.Membership], error) {
+func newMembershipsCache(logger log.Logger) (cache.Cache[*entities.Membership], error) {
 	l := log.NewHelper(logger)
-	backend := "memory"
 	opts := []cache.Option{cache.WithTTL(time.Second), cache.WithLogger(l), cache.WithDescription("Cache for org memberships")}
-	if rc != nil {
-		backend = "nats"
-		opts = append(opts, cache.WithNATS(rc.Conn, "chainloop-memberships"))
-		opts = append(opts, cache.WithReconnect(rc.Subscribe(ctx)))
-	}
-	l.Infow("msg", "cache initialized", "bucket", "chainloop-memberships", "backend", backend, "ttl", "1s")
+	l.Infow("msg", "cache initialized", "backend", "memory", "ttl", "1s")
 	return cache.New[*entities.Membership](opts...)
 }