feat(web): 增量自动刷新、结构区修复与默认指标/周期

自动刷新常态只拉 recent 尾部 K，每 1 分钟全量重算缠论；修复结构区缓存导入；默认指标/4h·1h·15m/近30天；同步 ECR-009 screener 相关改动。

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/test_crypto_wyckoff_combos.py

@@ -0,0 +1,31 @@
+"""Unit tests for TF combo validation."""
+
+from __future__ import annotations
+
+import pytest
+
+from crypto_wyckoff.combos import (
+    add_combo,
+    delete_combo,
+    get_combo,
+    list_combos,
+    validate_combo,
+)
+
+
+def test_builtin_default_is_h8_4_1():
+    c = get_combo(None)
+    assert c["id"] == "h8_4_1"
+    assert (c["high"], c["mid"], c["low"]) == ("8h", "4h", "1h")
+
+
+def test_validate_order():
+    assert validate_combo("8h", "4h", "1h") is None
+    assert validate_combo("1h", "4h", "8h") is not None
+    assert validate_combo("8h", "8h", "1h") is not None
+
+
+def test_list_includes_dwm():
+    ids = {c["id"] for c in list_combos()}
+    assert "h8_4_1" in ids
+    assert "d_w_m" in ids