Rebrand sexp → sx across web platform (173 files)

Rename all sexp directories, files, identifiers, and references to sx.
artdag/ excluded (separate media processing DSL).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

orders/tests/test_sx_helpers.py

@@ -0,0 +1,32 @@
+"""Unit tests for orders sx component helpers."""
+from __future__ import annotations
+
+import pytest
+
+from orders.sx.sx_components import _status_pill_cls
+
+
+class TestStatusPillCls:
+    def test_paid(self):
+        result = _status_pill_cls("paid")
+        assert "emerald" in result
+
+    def test_Paid_uppercase(self):
+        result = _status_pill_cls("Paid")
+        assert "emerald" in result
+
+    def test_failed(self):
+        result = _status_pill_cls("failed")
+        assert "rose" in result
+
+    def test_cancelled(self):
+        result = _status_pill_cls("cancelled")
+        assert "rose" in result
+
+    def test_pending(self):
+        result = _status_pill_cls("pending")
+        assert "stone" in result
+
+    def test_unknown(self):
+        result = _status_pill_cls("refunded")
+        assert "stone" in result