Tell the resolver the machines, not the names the mesh merely serves

The map the control plane hands a resolution holds both: the machines, and every name
the mesh was told to route to whichever machine serves it. A container's hosts wants all
of it, so a routed name resolves to the proxy. A resolver's zones want only the machines:
told the mesh's suffix is its own it answers authoritatively for everything under it and
forwards none of it, so a routed name with the suffix appended — drive.example.test.internal
— is a name nobody will ever ask for, standing beside the machines and looking as real.

Found composing the resolver's first assignment on a live machine, before pushing it.
hq issue 111.

internal/catalogue/facts.go

@@ -36,16 +36,23 @@ const (
 // **A closed list.** A module asking for a fact the mesh does not have is asking for a file nobody
 // will write, and finding that out on a machine — as a daemon that starts, reads nothing, and
 // answers no queries — is worse than being told where the manifest is.
-var facts = map[string]func(Resolution, map[string]string, string) string{
-	FactNodeNames: nodeNames,
-	FactNodeZones: nodeZones,
+// A fact is written from the names it is about. `every` is every name the mesh serves — machines
+// and the names it was told to route; `machines` is only the machines. A fact takes the set it is
+// true of, and the two must not be confused (novox/hq 04-ISSUES/111).
+var facts = map[string]func(r Resolution, every, machines map[string]string, suffix string) string{
+	FactNodeNames: func(r Resolution, every, _ map[string]string, suffix string) string {
+		return nodeNames(r, every, suffix)
+	},
+	FactNodeZones: func(r Resolution, _, machines map[string]string, suffix string) string {
+		return nodeZones(r, machines, suffix)
+	},
 }
 
 // FactsInto renders the facts a module asked for, as files it will be given.
 //
 // The module owns everything after the file exists: loading it, restarting on it, what a resolver
 // does with it. This only puts it there.
-func FactsInto(m Manifest, r Resolution, addresses map[string]string, suffix string) ([]map[string]any, error) {
+func FactsInto(m Manifest, r Resolution, addresses, machines map[string]string, suffix string) ([]map[string]any, error) {
 	if len(m.Facts) == 0 {
 		return nil, nil
 	}
@@ -70,7 +77,7 @@ func FactsInto(m Manifest, r Resolution, addresses map[string]string, suffix str
 		}
 		out = append(out, map[string]any{
 			"id": "fact-" + name, "type": "file", "path": path, "mode": "0644",
-			"content": write(r, addresses, suffix),
+			"content": write(r, addresses, machines, suffix),
 		})
 	}
 	return out, nil