Unify key support/resistance monitor type and fix form parity.

Merge 关键阻力位/关键支撑位 into 关键支撑阻力, share key_monitor_form.js across hub and new-tab views, and add hub shortcut to /key_monitor.

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

tests/test_key_monitor_rs_type.py

@@ -0,0 +1,27 @@
+import unittest
+
+from key_monitor_lib import (
+    KEY_MONITOR_RS_TYPE,
+    is_rs_key_monitor_type,
+    rs_monitor_type_for_storage,
+    rs_monitor_type_label,
+)
+
+
+class KeyMonitorRsTypeTests(unittest.TestCase):
+    def test_legacy_types_still_recognized(self):
+        self.assertTrue(is_rs_key_monitor_type("关键阻力位"))
+        self.assertTrue(is_rs_key_monitor_type("关键支撑位"))
+
+    def test_storage_normalizes_to_unified_type(self):
+        self.assertEqual(rs_monitor_type_for_storage("关键阻力位"), KEY_MONITOR_RS_TYPE)
+        self.assertEqual(rs_monitor_type_for_storage("关键支撑位"), KEY_MONITOR_RS_TYPE)
+        self.assertEqual(rs_monitor_type_for_storage(KEY_MONITOR_RS_TYPE), KEY_MONITOR_RS_TYPE)
+
+    def test_label_merges_legacy_display(self):
+        self.assertEqual(rs_monitor_type_label("关键阻力位"), KEY_MONITOR_RS_TYPE)
+        self.assertEqual(rs_monitor_type_label("箱体突破"), "箱体突破")
+
+
+if __name__ == "__main__":
+    unittest.main()