feat(gateway+web): D 消息编辑/删除 WS 实时广播 — message_edited/message_deleted

- 后端: ws_hub.go broadcastMessageEdited(完整DTO,thinking剥离)/broadcastMessageDeleted(全广播+sessionId,前端过滤); history_write.go PATCH/DELETE成功后触发(404/400/501不广播); history/message_ops.go GetMessage(导出壳,取删除前sessionId)
- 前端: useAppStore.updateMessageById/removeMessageById + messageEventApplies(同会话过滤); ws.ts 消费两事件(缺content丢弃); dispatchFrame导出(可测)
- 真机e2e: PATCH/DELETE → WS收到 message_edited/message_deleted, 二次删404无帧
- Docs/api-client v0.34 §3.8; 测试 history_write_broadcast_test + messageSync.test(14 checks)
- 遗留: 前端编辑/删除UI入口+api客户端函数未接(lib/api 无 PATCH/DELETE messages); ws_hub.go 589行>500(既有)

internal/services/gateway/history_write.go

@@ -1,6 +1,7 @@
 package gateway
 
 import (
+	"context"
 	"encoding/json"
 	"errors"
 	"net/http"
@@ -14,7 +15,9 @@ import (
 // This file owns the session/message write endpoints added for the Android
 // collaboration batch ③a: PATCH /sessions/{id} (A4 rename + D5 pin), PATCH
 // /messages/{id} (D3 edit) and DELETE /messages/{id} (D3 delete). All are owner/admin
-// history writes; the reads and DTOs live in history.go.
+// history writes; the reads and DTOs live in history.go. The D3 edit/delete paths also
+// broadcast their outcome over the WS hub (message_edited / message_deleted, see
+// ws_hub.go) so the account's other browsers stay in sync without a manual re-read.
 
 // patchSessionRequest is the PATCH /api/v1/sessions/{id} body. Both fields are pointers
 // so an absent field is distinguishable from an explicit zero value: title renames the
@@ -145,11 +148,20 @@ func (s *Server) handlePatchMessage(w http.ResponseWriter, r *http.Request) {
 		writeError(w, apperr.Wrap(apperr.ErrInternal, "message_failed", "failed to update message"))
 		return
 	}
+	// Broadcast the edit so every other browser of the account re-renders the same
+	// bubble without a refresh (the message_persisted realtime-sync contract, D3 edit
+	// path). Thinking is stripped from the frame to match the persisted/replay
+	// contract; the REST reply keeps it because the messages routes are owner/admin-only.
+	edited := toHistoryMessage(msg)
+	edited.Thinking = ""
+	s.hub.broadcastMessageEdited(edited)
 	writeJSON(w, http.StatusOK, toHistoryMessage(msg))
 }
 
 // handleDeleteMessage removes a single message (D3). An unknown id answers 404, a
-// missing HistoryStore 501. It is owner/admin-gated.
+// missing HistoryStore 501. It is owner/admin-gated. A successful delete is
+// broadcast as a `message_deleted` frame so every browser of the account drops the
+// row without a refresh; the owning session is read before the row disappears.
 func (s *Server) handleDeleteMessage(w http.ResponseWriter, r *http.Request) {
 	if s.history == nil {
 		writeError(w, &apperr.AppError{Code: "not_implemented", Message: "会话历史服务未配置（未注入 HistoryStore）", HTTPCode: http.StatusNotImplemented})
@@ -160,6 +172,7 @@ func (s *Server) handleDeleteMessage(w http.ResponseWriter, r *http.Request) {
 		writeError(w, apperr.Wrap(apperr.ErrBadRequest, "bad_request", "message id is required"))
 		return
 	}
+	sessionID := s.messageSession(r.Context(), id)
 	if err := s.history.DeleteMessage(r.Context(), id); err != nil {
 		if errors.Is(err, history.ErrMessageNotFound) {
 			writeError(w, apperr.Wrap(apperr.ErrNotFound, "not_found", "message %q not found", id))
@@ -169,5 +182,31 @@ func (s *Server) handleDeleteMessage(w http.ResponseWriter, r *http.Request) {
 		writeError(w, apperr.Wrap(apperr.ErrInternal, "message_failed", "failed to delete message"))
 		return
 	}
+	s.hub.broadcastMessageDeleted(sessionID, id)
 	writeJSON(w, http.StatusOK, map[string]any{"deleted": id})
 }
+
+// messageLookup is the optional narrower view of HistoryStore used by DELETE to learn
+// a message's owning session before it is removed (afterwards there is nothing left to
+// ask). *history.Store implements it; a store that does not simply yields an unscoped
+// frame, which the client resolves by the globally unique message id.
+type messageLookup interface {
+	GetMessage(ctx context.Context, id string) (history.Message, error)
+}
+
+// messageSession returns the session id owning message id, or "" when the store cannot
+// answer (no lookup surface, unknown id, or a read error). A blank session is safe for
+// the broadcast: the message id is globally unique, so a client that falls back to an
+// id-only filter can only ever touch that message's own conversation.
+func (s *Server) messageSession(ctx context.Context, id string) string {
+	lookup, ok := s.history.(messageLookup)
+	if !ok {
+		return ""
+	}
+	msg, err := lookup.GetMessage(ctx, id)
+	if err != nil {
+		s.log.Debug("history message session lookup", "err", err, "message", id)
+		return ""
+	}
+	return msg.SessionID
+}

internal/services/gateway/history_write_broadcast_test.go

@@ -0,0 +1,165 @@
+package gateway
+
+import (
+	"context"
+	"encoding/json"
+	"net/http"
+	"testing"
+
+	"git.yeij.top/AskaEth/Cyrene_v2/internal/auth"
+	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/history"
+)
+
+// These tests cover the D3 realtime-sync contract: a successful message edit or
+// delete must reach the account's other browsers as a WS frame, not only the client
+// that issued the REST call (otherwise every other browser has to re-read to converge).
+
+// TestPatchMessageBroadcastsEdited covers ①: PATCH /api/v1/messages/{id} answers 200
+// and pushes exactly one `message_edited` frame scoped to the edited message's own
+// session, carrying the new content (and the mode/createdAt a client renders with).
+// The frame's data is the updated message DTO with thinking stripped, matching the
+// message_persisted contract; the REST reply keeps thinking (owner/admin-only read).
+func TestPatchMessageBroadcastsEdited(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	srv, ts, jwt, st := newHistoryEnv(t)
+	c := newFakeConn(srv.hub, 32)
+	srv.hub.register(c)
+	sub, err := st.NewSubSession(ctx, "owner")
+	if err != nil {
+		t.Fatalf("new sub: %v", err)
+	}
+	tok := signAny(t, jwt, "acct", auth.RoleOwner)
+
+	seedMessage := func(sessionID string) history.Message {
+		t.Helper()
+		return seedFullMessage(t, st, history.Message{
+			SessionID: sessionID, Role: history.RoleUser, Content: "old body",
+			Mode: "chat", Thinking: "internal chain", CreatedAt: 1000,
+		})
+	}
+	for _, tc := range []struct {
+		name      string
+		sessionID string
+	}{
+		{name: "main session", sessionID: history.MainSessionID},
+		{name: "sub session", sessionID: sub},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			msg := seedMessage(tc.sessionID)
+			resp, body := doReq(t, http.MethodPatch, ts.URL+"/api/v1/messages/"+msg.ID, map[string]any{"content": "new body"}, tok)
+			if resp.StatusCode != http.StatusOK {
+				t.Fatalf("patch status = %d, want 200 (body=%s)", resp.StatusCode, body)
+			}
+			// The REST reply is the full DTO for the issuing client.
+			var reply historyMessage
+			if err := json.Unmarshal(decodeBody(t, body)["data"], &reply); err != nil {
+				t.Fatalf("decode reply: %v (body=%s)", err, body)
+			}
+			if reply.Content != "new body" || reply.Thinking != "internal chain" {
+				t.Fatalf("reply = %+v, want edited content + kept thinking", reply)
+			}
+
+			ev := readFakeFrame(t, c)
+			if ev.Type != "message_edited" {
+				t.Fatalf("frame type = %q, want message_edited (frame=%+v)", ev.Type, ev)
+			}
+			if ev.SessionID != tc.sessionID {
+				t.Fatalf("frame sessionId = %q, want %q", ev.SessionID, tc.sessionID)
+			}
+			data, ok := ev.Data.(map[string]any)
+			if !ok {
+				t.Fatalf("frame data = %+v, want object", ev.Data)
+			}
+			if data["id"] != msg.ID || data["content"] != "new body" {
+				t.Fatalf("frame data = %+v, want id=%s content=new body", data, msg.ID)
+			}
+			if data["sessionId"] != tc.sessionID {
+				t.Fatalf("frame data.sessionId = %v, want %q", data["sessionId"], tc.sessionID)
+			}
+			if data["mode"] != "chat" {
+				t.Fatalf("frame data.mode = %v, want chat", data["mode"])
+			}
+			if _, isNum := data["createdAt"].(float64); !isNum {
+				t.Fatalf("frame data.createdAt = %v, want a number", data["createdAt"])
+			}
+			if _, leaked := data["thinking"]; leaked {
+				t.Fatalf("frame data = %+v, thinking must be stripped from the broadcast", data)
+			}
+			if err := connHasNoFrame(c); err != nil {
+				t.Fatal(err)
+			}
+		})
+	}
+}
+
+// TestDeleteMessageBroadcastsDeleted covers ②: DELETE /api/v1/messages/{id} answers
+// 200, really removes the row, and pushes one `message_deleted` frame carrying the id
+// plus the owning session (read before the row disappears) so a remote browser can
+// drop it without re-reading.
+func TestDeleteMessageBroadcastsDeleted(t *testing.T) {
+	t.Parallel()
+	ctx := context.Background()
+	srv, ts, jwt, st := newHistoryEnv(t)
+	c := newFakeConn(srv.hub, 32)
+	srv.hub.register(c)
+	sub, err := st.NewSubSession(ctx, "owner")
+	if err != nil {
+		t.Fatalf("new sub: %v", err)
+	}
+	msg := seedFullMessage(t, st, history.Message{SessionID: sub, Role: history.RoleUser, Content: "to be removed", CreatedAt: 2000})
+	tok := signAny(t, jwt, "acct", auth.RoleOwner)
+
+	resp, body := doReq(t, http.MethodDelete, ts.URL+"/api/v1/messages/"+msg.ID, nil, tok)
+	if resp.StatusCode != http.StatusOK {
+		t.Fatalf("delete status = %d, want 200 (body=%s)", resp.StatusCode, body)
+	}
+
+	ev := readFakeFrame(t, c)
+	if ev.Type != "message_deleted" {
+		t.Fatalf("frame type = %q, want message_deleted (frame=%+v)", ev.Type, ev)
+	}
+	if ev.SessionID != sub {
+		t.Fatalf("frame sessionId = %q, want %q", ev.SessionID, sub)
+	}
+	data, ok := ev.Data.(map[string]any)
+	if !ok {
+		t.Fatalf("frame data = %+v, want object", ev.Data)
+	}
+	if data["id"] != msg.ID {
+		t.Fatalf("frame data.id = %v, want %s", data["id"], msg.ID)
+	}
+	if err := connHasNoFrame(c); err != nil {
+		t.Fatal(err)
+	}
+
+	// The broadcast must not claim a delete that did not happen.
+	remaining, err := st.List(ctx, sub, 0, 50, "")
+	if err != nil {
+		t.Fatalf("list after delete: %v", err)
+	}
+	for _, m := range remaining {
+		if m.ID == msg.ID {
+			t.Fatalf("message %s still stored after a successful delete", msg.ID)
+		}
+	}
+}
+
+// TestDeleteMessageUnknownIDBroadcastsNothing pins the failure side: a 404 delete
+// (unknown id) must not push a `message_deleted` frame, or a client would drop a
+// message that still exists.
+func TestDeleteMessageUnknownIDBroadcastsNothing(t *testing.T) {
+	t.Parallel()
+	srv, ts, jwt, _ := newHistoryEnv(t)
+	c := newFakeConn(srv.hub, 32)
+	srv.hub.register(c)
+	tok := signAny(t, jwt, "acct", auth.RoleOwner)
+
+	resp, body := doReq(t, http.MethodDelete, ts.URL+"/api/v1/messages/msg-does-not-exist", nil, tok)
+	if resp.StatusCode != http.StatusNotFound {
+		t.Fatalf("delete status = %d, want 404 (body=%s)", resp.StatusCode, body)
+	}
+	if err := connHasNoFrame(c); err != nil {
+		t.Fatal(err)
+	}
+}

internal/services/gateway/ws_hub.go

@@ -188,6 +188,35 @@ func (h *hub) broadcast(ev wsEvent) {
 	}
 }
 
+// wsMessageEdited / wsMessageDeleted are the downstream event types of the D3
+// history writes: a message's content was edited, or a message was removed. Both
+// reuse the wsEvent envelope and the same all-connections fan-out as
+// `message_persisted` — the hub has no per-session subscription, so the frame
+// carries SessionID and a client filters it by its active session, exactly as it
+// does for message_persisted.
+const (
+	wsMessageEdited  = "message_edited"
+	wsMessageDeleted = "message_deleted"
+)
+
+// broadcastMessageEdited fans a content edit out to every client as a
+// `message_edited` frame whose data is the updated message DTO. The frame is a
+// render-only sync: the edited content's single source of truth stays the history
+// store, so a client that missed the frame converges again on its next read. The
+// caller strips Thinking to match the message_persisted/replay contract.
+func (h *hub) broadcastMessageEdited(msg historyMessage) {
+	h.broadcast(wsEvent{Type: wsMessageEdited, SessionID: msg.SessionID, Data: msg})
+}
+
+// broadcastMessageDeleted fans a removal out to every client as a
+// `message_deleted` frame carrying the removed id (plus the owning sessionId for
+// client-side session filtering), so every browser of the account drops the row
+// without a refresh. sessionID may be empty when the store could not report it;
+// clients then fall back to the globally unique id.
+func (h *hub) broadcastMessageDeleted(sessionID, id string) {
+	h.broadcast(wsEvent{Type: wsMessageDeleted, SessionID: sessionID, Data: map[string]any{"id": id}})
+}
+
 // relay is the bus handler for the ws.> pattern and the producer bridge
 // patterns. The ws.chat subject is a streaming trigger (run the loop and emit
 // chunks); a ws.* subject becomes an outbound event of its design type; a