feat(agents,api): 一致性冲突一键采纳补丁对 original/replacement + SSE/契约透传

- Conflict schema 增 original/replacement（可缺）：可局部修复时审稿提议精确补丁
- 续审 prompt 指示填逐字 original + 改后 replacement，不可定位则留空
- orchestrator SSE conflict 事件 + apps/api ReviewConflictView 透传两字段
- 重生成 TS 客户端 schema.d.ts；memory/contracts.md 记录契约变更（向后兼容）

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/core/ww_core/orchestrator/sse.py

@@ -68,11 +68,24 @@ def conflict_event(
     where: str,
     refs: list[str],
     suggestion: str,
+    original: str | None = None,
+    replacement: str | None = None,
 ) -> SseEvent:
-    """冲突命中事件（§7.3 `conflict`）——形对齐 C6 `Conflict`，供正文就地朱砂标注。"""
+    """冲突命中事件（§7.3 `conflict`）——形对齐 C6 `Conflict`，供正文就地朱砂标注。
+
+    `original`/`replacement` 为可选一键采纳补丁对：可局部修复时由审稿提议，
+    前端「采纳改法」据此把 original→replacement find-replace 进终稿（不可定位则为 None）。
+    """
     return SseEvent(
         event=EVENT_CONFLICT,
-        data={"type": type, "where": where, "refs": refs, "suggestion": suggestion},
+        data={
+            "type": type,
+            "where": where,
+            "refs": refs,
+            "suggestion": suggestion,
+            "original": original,
+            "replacement": replacement,
+        },
     )
 
 
@@ -180,6 +193,8 @@ def _section_result_events(name: str, result: dict[str, Any]) -> list[SseEvent]:
                     where=conflict.get("where", ""),
                     refs=list(conflict.get("refs") or []),
                     suggestion=conflict.get("suggestion", ""),
+                    original=conflict.get("original"),
+                    replacement=conflict.get("replacement"),
                 )
             )
     elif name == FORESHADOW: