Report a provider that keeps failing a consumer in status (hq ADR 0224)

The identity provider failed every consumer for a day and status called the
mesh well (hq issue 179). The controller now follows every provider's
provisioner.failing/recovered, keeps the newest failing word per provider,
machine and consumer (migration 0065), and status, its JSON and node show
name it until it recovers. Every module that receives contributions is
granted the two events, so no manifest can forget them.

internal/catalogue/events.go

@@ -3,6 +3,7 @@ package catalogue
 import (
 	"fmt"
 	"regexp"
+	"slices"
 	"strings"
 )
 
@@ -159,3 +160,34 @@ func consumePattern(pattern string) error {
 	}
 	return nil
 }
+
+// The events a provider says about its consumers (novox/hq ADR 0224): a consumer it has failed
+// without one success for minutes, and that consumer succeeding again or being withdrawn. The
+// controller follows them from every module and `status` names a consumer failing until it recovers.
+const (
+	ProvisionerFailing   = "provisioner.failing"
+	ProvisionerRecovered = "provisioner.recovered"
+)
+
+// ProvisionerEvents are both, in the order they are said.
+var ProvisionerEvents = []string{ProvisionerFailing, ProvisionerRecovered}
+
+// EmitsAll is every event a module may publish: what it declares and, for a module that receives
+// contributions — a provider, running a provisioner over them — the provider's standing events.
+//
+// **Derived, not declared**, because they are the mesh's rule about every provider rather than
+// anything one module chose to say: a provider whose manifest forgot them would fail its consumers
+// as silently as on 2026-10-05, with its announcement refused by the bus (novox/hq issue 179). Every
+// grant of a module's publishing reads this, never the declared list alone.
+func (m Manifest) EmitsAll() []string {
+	out := append([]string(nil), m.Emits...)
+	if len(m.Receives) == 0 {
+		return out
+	}
+	for _, e := range ProvisionerEvents {
+		if !slices.Contains(out, e) {
+			out = append(out, e)
+		}
+	}
+	return out
+}