Route Tomorrow through generated text rendering

internal/app/app.go

@@ -566,6 +566,7 @@ func GenerateReport(ctx context.Context, req ReportRequest) (*ReportResult, erro
 			metadata:           metadata,
 			metadataPath:       metadataPath,
 			preflightPath:      preflightPath,
+			priorSnapshot:      priorSnapshot,
 			recentChanges:      recentChanges,
 			renderResult:       renderResult,
 			renderer:           renderer,
@@ -646,6 +647,7 @@ type generatedReportRequest struct {
 	metadata           state.Metadata
 	metadataPath       string
 	preflightPath      string
+	priorSnapshot      *state.PriorSnapshot
 	recentChanges      []changes.Change
 	renderResult       *scriptorium.RenderResult
 	renderer           Renderer
@@ -755,6 +757,7 @@ func generateTextTemplateReport(ctx context.Context, req generatedReportRequest)
 		NotificationPath:        notificationPath,
 		Metadata:                req.metadata,
 		MetadataPath:            metadataPath,
+		PriorSnapshot:           req.priorSnapshot,
 		RecentChanges:           req.recentChanges,
 		RenderResult:            req.renderResult,
 		StructuredRunResult:     structuredResult,
@@ -1129,6 +1132,12 @@ func buildRenderContext(definition report.Definition, metadata briefing.Metadata
 			return nil, fmt.Errorf("report template %q requires hourly generated text for report %q", definition.TemplateID, definition.ID)
 		}
 		return generatedtext.BuildHourlyRenderContext(metadata, snapshot, hourly, reportFacts.Collected, reportFacts.Derived)
+	case "tomorrow":
+		tomorrow, ok := generated.(generatedtext.Tomorrow)
+		if !ok {
+			return nil, fmt.Errorf("report template %q requires tomorrow generated text for report %q", definition.TemplateID, definition.ID)
+		}
+		return generatedtext.BuildTomorrowRenderContext(metadata, snapshot, tomorrow, reportFacts.Collected, reportFacts.Derived)
 	default:
 		return nil, fmt.Errorf("report template %q is not supported for report %q", definition.TemplateID, definition.ID)
 	}