Route Tomorrow through generated text rendering

internal/cli/root_test.go

@@ -130,7 +130,7 @@ func TestRunGenerateTomorrowWritesMarkdownReport(t *testing.T) {
 	if err != nil {
 		t.Fatalf("read report: %v", err)
 	}
-	if !strings.Contains(string(report), "# Daily Report") {
+	if !strings.Contains(string(report), "# Saturday's Weather") {
 		t.Fatalf("report output missing markdown:\n%s", string(report))
 	}
 	dataPackagePath := oneArtifact(t, workspaceRoot, "data-packages", "tomorrow", "2026-05-30", "*.data_package.yaml")
@@ -1176,13 +1176,31 @@ if [ "$1" = "render" ]; then
 fi
 if [ "$1" = "run" ]; then
   out=""
+  prompt=""
   while [ "$#" -gt 0 ]; do
     if [ "$1" = "--out" ]; then
       shift
       out="$1"
+    elif [ "$1" = "--prompt" ]; then
+      shift
+      prompt="$1"
     fi
     shift
   done
+  if [ "$prompt" = "weather.tomorrow_generated_text" ]; then
+    cat > "$out" <<'JSON'
+{
+  "summary": "Tomorrow starts with showers before improving.",
+  "forecast_discussion": [
+    "Morning showers should taper as drier air arrives.",
+    "Afternoon conditions trend quieter."
+  ],
+  "precipitation_timing": "The best rain chance is during the morning."
+}
+JSON
+    printf 'wrote generated text\n' >&2
+    exit 0
+  fi
   printf '# Daily Report\n\nGenerated by fake scriptorium.\n' > "$out"
   printf 'wrote report\n' >&2
   exit 0
@@ -1225,6 +1243,20 @@ if [ "$1" = "run" ]; then
   "precipitation_timing": "A cold front is moving into the region.",
   "confidence": "Medium"
 }
+JSON
+    printf 'wrote generated text\n' >&2
+    exit 0
+  fi
+  if [ "$prompt" = "weather.tomorrow_generated_text" ]; then
+    cat > "$out" <<'JSON'
+{
+  "summary": "Tomorrow starts with showers before improving.",
+  "forecast_discussion": [
+    "Morning showers should taper as drier air arrives.",
+    "Afternoon conditions trend quieter."
+  ],
+  "precipitation_timing": "The best rain chance is during the morning."
+}
 JSON
     printf 'wrote generated text\n' >&2
     exit 0