Bring F3 up to its release branch, with both sides' store tests (part 13 of 14)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

internal/inventory/template_test.go

@@ -0,0 +1,25 @@
+package inventory
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/novox/mesh-controller/internal/catalogue"
+)
+
+// The manifest the mesh holds carries each file's text (novox/hq ADR 0349 §2): one still naming a template — a
+// build by a builder that predates templates, or a manifest handed over unbuilt — would compose a file with no
+// text, and is refused by name.
+func TestAManifestStillNamingATemplateIsNotRegistered(t *testing.T) {
+	inv := ForTest(t)
+	m := catalogue.Manifest{Module: "notifier", Version: "1", Resources: []map[string]any{
+		{"id": "conf", "type": "file", "path": "/etc/notifier.conf", "template": "files/notifier.conf"}}}
+	err := inv.RegisterModule(t.Context(), m, Source{})
+	if err == nil || !strings.Contains(err.Error(), "files/notifier.conf") {
+		t.Fatalf("a manifest naming a template was registered: %v", err)
+	}
+	m.Resources[0] = map[string]any{"id": "conf", "type": "file", "path": "/etc/notifier.conf", "content": "x"}
+	if err := inv.RegisterModule(t.Context(), m, Source{}); err != nil {
+		t.Fatalf("the same manifest with its text was refused: %v", err)
+	}
+}