Enable plain TTY logging mode + loose-data processing

internal/app/app.go

@@ -139,6 +139,20 @@ func isInteractiveTTY(w io.Writer) bool {
 	return (info.Mode() & os.ModeCharDevice) != 0
 }
 
+func spinnerEnabledFor(w io.Writer, level logLevel) bool {
+	mode := strings.TrimSpace(strings.ToLower(os.Getenv("SOW_TOOLS_TTY_MODE")))
+	switch mode {
+	case "plain", "off", "0", "false", "no":
+		return false
+	case "spinner", "on", "1", "true", "yes":
+		return level == logLevelNormal && isInteractiveTTY(w)
+	case "", "auto":
+		return isInteractiveTTY(w) && strings.TrimSpace(os.Getenv("CI")) == "" && level == logLevelNormal
+	default:
+		return isInteractiveTTY(w) && strings.TrimSpace(os.Getenv("CI")) == "" && level == logLevelNormal
+	}
+}
+
 var commands = []command{
 	{
 		name:        "build",
@@ -605,7 +619,7 @@ func newProjectConsole(ctx context, p *project.Project, commandName string) *pro
 		commandName:    commandName,
 		commandLabel:   projectCommandLabel(commandName),
 		level:          ctx.logLevel,
-		spinnerEnabled: isInteractiveTTY(ctx.stderr) && strings.TrimSpace(os.Getenv("CI")) == "" && ctx.logLevel == logLevelNormal,
+		spinnerEnabled: spinnerEnabledFor(ctx.stderr, ctx.logLevel),
 	}
 }
 
@@ -787,7 +801,7 @@ func newBuildHAKConsole(ctx context, p *project.Project, opts buildHAKOptions) *
 		projectName:    p.Config.Module.Name,
 		planOnly:       opts.planOnly,
 		level:          opts.logLevel,
-		spinnerEnabled: isInteractiveTTY(ctx.stderr) && strings.TrimSpace(os.Getenv("CI")) == "" && opts.logLevel == logLevelNormal,
+		spinnerEnabled: spinnerEnabledFor(ctx.stderr, opts.logLevel),
 	}
 }
 
@@ -962,7 +976,7 @@ func newTopdataConsole(ctx context, p *project.Project, commandName string) *top
 		commandName:    commandName,
 		commandLabel:   topdataCommandLabel(commandName),
 		level:          ctx.logLevel,
-		spinnerEnabled: isInteractiveTTY(ctx.stderr) && strings.TrimSpace(os.Getenv("CI")) == "" && ctx.logLevel == logLevelNormal,
+		spinnerEnabled: spinnerEnabledFor(ctx.stderr, ctx.logLevel),
 	}
 }