feat: IM平台列 + deviceID标识 + 会话持久化完善

- agent-96: chat_messages 加 platform 列(迁移0004) + IM主人私聊落主会话web(带platform) + 前端按平台过滤契约 + message_persisted 带 platform(复用 BroadcastPersisted)
- agent-97: chat_messages 加 device_id 列(迁移0005) + history.Message.DeviceID + Web发消息带deviceId(localStorage getClientId) + IM persistToMain 带 deviceID + 前端气泡展示 SourceLabel + 修主会话基础2个bug(fn scanMessage语法/DDL缺列)
- design/16 §4.4(平台) + §4.5(deviceID) 已入档
- 实机: POST /chat 带 deviceId 读回 user/assistant 均带 deviceId+platform; 后端 build/vet/test 绿 + 前端 build 绿
- 红线: 身份靠 actor 元数据; 禁止 shell 读 .env(JWT冒烟由主会话跑)

cmd/cyrene/wire.go

@@ -23,12 +23,12 @@ import (
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/persona/loader"
 	personareg "git.yeij.top/AskaEth/Cyrene_v2/internal/persona/registry"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/platform"
-	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/history"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/agent"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/capacity"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/embedding"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/exec"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/guardrail"
+	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/history"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/knowledge"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/loop"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/memory"
@@ -426,6 +426,12 @@ func (a *app) wireAuxiliary() error {
 	}
 	a.sessions = sess
 
+	hist, herr := history.NewStore(context.Background(), a.db, a.log)
+	if herr != nil {
+		return fmt.Errorf("history store: %w", herr)
+	}
+	a.history = hist
+
 	automation, err := automations.NewService(automations.Config{}, automations.Deps{
 		Bus:  a.bus,
 		Loop: a.loop,
@@ -481,6 +487,7 @@ func (a *app) wireChannels() error {
 		Loop:     a.loop,
 		Sessions: a.sessions,
 		Owner:    a.owner,
+		History:  a.history,
 	})
 	if berr != nil {
 		return fmt.Errorf("channel bridge: %w", berr)
@@ -512,11 +519,9 @@ func (a *app) wireFrontend() error {
 		a.log.Warn("audit store unavailable, falling back to in-memory", "error", aerr)
 		auditStore = nil
 	}
-	hist, herr := history.NewStore(context.Background(), a.db, a.log)
-	if herr != nil {
-		return fmt.Errorf("history store: %w", herr)
-	}
-	a.history = hist
+	// a.history is built in wireAuxiliary so both the channel bridge (wireChannels)
+	// and the gateway share the same persistent store. History was a no-op dependency
+	// before the IM path, so nothing downstream depends on its creation order change.
 	gw, err := gateway.New(a.cfg, gateway.Deps{
 		Log:         logger.WithSource(a.log, "gateway"),
 		Auth:        jwt,
@@ -543,6 +548,12 @@ func (a *app) wireFrontend() error {
 		return fmt.Errorf("gateway: %w", err)
 	}
 	gw.SetVoice(a.voice)
+	if a.channelBridge != nil {
+		// Route the channel bridge's owner-private persisted messages into the same
+		// `message_persisted` broadcast the orchestrator uses, so the Web client mirrors
+		// IM messages with one, uniform frame (design/16 §4.4).
+		a.channelBridge.SetOnPersisted(a.gw.BroadcastPersisted)
+	}
 	a.gw = gw
 	return nil
 }