Added a location block to the data package

internal/cli/root_test.go

@@ -437,6 +437,7 @@ func TestRunGenerateDailyWritesMarkdownReport(t *testing.T) {
 		"generate", "daily",
 		"--config", configPath,
 		"--date", "2026-05-29",
+		"--tz", "UTC",
 		"--out", outPath,
 	}, &stdout, &stderr)
 	if err != nil {
@@ -463,6 +464,24 @@ func TestRunGenerateDailyWritesMarkdownReport(t *testing.T) {
 	if !strings.Contains(string(data), `data_package.v1`) || !strings.Contains(string(data), `"daily_today"`) {
 		t.Fatalf("data package output missing expected content:\n%s", string(data))
 	}
+	var decoded struct {
+		Briefing struct {
+			Metadata struct {
+				Location struct {
+					ID       string `json:"id"`
+					Name     string `json:"name"`
+					Region   string `json:"region"`
+					Timezone string `json:"timezone"`
+				} `json:"location"`
+			} `json:"metadata"`
+		} `json:"briefing"`
+	}
+	if err := json.Unmarshal(data, &decoded); err != nil {
+		t.Fatalf("decode data package: %v", err)
+	}
+	if decoded.Briefing.Metadata.Location.ID != "home" || decoded.Briefing.Metadata.Location.Name != "Brentwood" || decoded.Briefing.Metadata.Location.Region != "St. Louis Metro" || decoded.Briefing.Metadata.Location.Timezone != "UTC" {
+		t.Fatalf("location = %#v, want configured location with overridden timezone", decoded.Briefing.Metadata.Location)
+	}
 	preflightMatches, err := filepath.Glob(filepath.Join(workspaceRoot, "preflight", "daily", "2026-05-29", "*.render.json"))
 	if err != nil {
 		t.Fatalf("glob preflight: %v", err)