feat(ECR-007): Wyckoff Live Structure with Confirmed/Live isolation

Add live.py lifecycle and event candidates; assemble confirmed vs live
in engine; Summary partition; execution_signal source=confirmed only.
Keep strategies untouched; do not lower Confirmed thresholds for Live.

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

tests/fixtures/analyze_contract_keys.json

@@ -14,11 +14,11 @@
     "uncompleted_bi_list",
     "uncompleted_seg_list",
     "uncompleted_zs_list",
+    "wyckoff",
     "zs_list"
   ],
   "optional_when": {
-    "include_structure_zones": ["structure_zones"],
-    "include_wyckoff": ["wyckoff"]
+    "include_structure_zones": ["structure_zones"]
   },
   "wyckoff_keys": [
     "trading_range",
@@ -26,6 +26,10 @@
     "phases",
     "events",
     "volume_profile",
-    "volume_confirm"
-  ]
+    "volume_confirm",
+    "cycles",
+    "live",
+    "lifecycle"
+  ],
+  "notes": "wyckoff 默认返回；cycles[0]=ACTIVE；phases/events=Confirmed；live=Developing（WYCKOFF-LIVE-STRUCTURE-001）；Execution 仅 Confirmed；见 docs/notes/"
 }