feat: add AI catalog description generation

tools/tht/internal/setup/files.go

@@ -343,6 +343,7 @@ func render(root, descriptorPath string, value answers) ([]byte, []byte, error)
 		"THT_WORKSPACE_GIT_BRANCH=" + dotenvValue(value.workspaceBranch),
 		"THT_WORKSPACE_INSTALLATION_ID=" + dotenvValue(value.installationID),
 		"THT_AUTH_CONFIG_ROOT=" + dotenvValue(descriptor.Authentication.ConfigDirectory),
+		"THT_INSTALLATION_CONFIG_SOURCE=" + dotenvValue(descriptorPath),
 		"THT_SECRETS_FILE=" + dotenvValue(value.secretsFile),
 		"PI_AUTH_FILE=" + dotenvValue(value.piAuthFile),
 		"THOTH_HTTP_PORT=8080", "THOTH_CORE_HTTP_PORT=8787", "MAX_PI_PROCESSES=4",

tools/tht/internal/setup/files_metadata_generation_test.go

@@ -0,0 +1,31 @@
+package setup
+
+import (
+	"os"
+	"strconv"
+	"strings"
+	"testing"
+)
+
+func TestEnsureFilesProjectsItsInstallationYAMLToTheApplication(t *testing.T) {
+	root := newProject(t, "metadata generation config")
+	setNonInteractiveAnswers(t, newExternalSecrets(t, root))
+
+	result, err := EnsureFiles(Request{
+		ProjectRoot: root, InstallationID: "metadata", Profile: "local", NonInteractive: true,
+	}, strings.NewReader(""), ioDiscard{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	environment, err := os.ReadFile(result.EnvironmentPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	want := "THT_INSTALLATION_CONFIG_SOURCE=" + strconv.Quote(result.DescriptorPath)
+	if !strings.Contains(string(environment), want) {
+		t.Fatalf("generated environment does not project installation YAML: want %q", want)
+	}
+	if strings.Contains(string(environment), "PI_MODEL") || strings.Contains(string(environment), "llm_policy") {
+		t.Fatal("metadata-generation projection was coupled to Pi or workspace policy")
+	}
+}