Refactored orchestrator for staged file handling, added structured prompt support, adjusted Feishu file handling

tools/shell/shell_test.go

@@ -40,3 +40,27 @@ func TestCallWindowsDateIsNonInteractive(t *testing.T) {
 		t.Fatal("expected non-empty output for date command")
 	}
 }
+
+func TestRequiresShellParsing(t *testing.T) {
+	if !requiresShellParsing("echo hi | cat") {
+		t.Fatal("expected pipe command to require shell parsing")
+	}
+	if requiresShellParsing("echo hello") {
+		t.Fatal("expected simple command to not require shell parsing")
+	}
+}
+
+func TestCallSupportsPipeOnUnix(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("unix-only behavior test")
+	}
+	tool := New([]string{"echo"}, ".", 3*time.Second, 4000, nil)
+	out, err := tool.Call(context.Background(), "printf hello | wc -c")
+	if err != nil {
+		t.Fatalf("expected pipeline command success, got err=%v output=%q", err, out)
+	}
+	trimmed := strings.TrimSpace(out)
+	if trimmed != "5" {
+		t.Fatalf("expected output 5, got %q", trimmed)
+	}
+}