feat(session,runtime): 多角色并存—按会话选角(迁移0011 + 按回合解析 + agent池 + 提取器修正)
按 DevDocs/design/22 批次 1 后端(§2/§3/§4.1-4.5/§4.7/§5 验收 1-6)。
- 迁移 0011:chat_sessions.persona_id + chat_messages.persona_id(均 DEFAULT '',无回填 → 升级零风险);同步包内幂等 DDL;**真实库升级验证**(拷贝 data/cyrene.db 到临时目录跑 MigrateUp:既有 1 会话/109 消息 persona 仍为 '',原库未被触碰)
- history:SessionMeta/Message 加 PersonaID + SetSessionPersona;ListSessions/List/scan/Append 带上
- runtime:SessionEnv.PersonaID + loop.personaFor(ctx) 替换固定 l.personaID(memory/request/turn)+ **agent 池**(Options.Agents,按角色取 instructions,未命中回落)+ **提取器不再把 persona 烤死在构造期**(多角色下记忆不再永远记在 cyrene 名下)+ **thinking 旋钮改为按会话角色解析**(否则角色 Y 会用角色 X 的预算/展示)
- gateway:会话 DTO/POST/PATCH 支持 personaId;ws/rest/voice 的 OwnerEnv 硬编改为**按会话解析角色**(actor 元数据语义不变);admin memories 搜索去掉硬编 cyrene
- Docs/api-client v0.42;**两处有意的行为收紧**已写明:POST /sessions body 非法 JSON → 400(原先完全忽略 body;空/null/{} 仍 201);POST /admin/memories/search 省略 personaId 且无默认角色 → 400(原先默认查 cyrene)
- 测试:design/22 §5 验收 1-6(记忆隔离/提示词首条 system/情绪按角色/提取 persona 归属/迁移兼容)+ 进程内 e2e(断言 adapter 收到的 model.Request.Messages[0] 即该角色的 systemPrompt)
- **已知未做(留批次 2 / 待确认)**:① IM 与渠道级未做 → **§7-3「owner 私聊镜像随主会话角色」尚未生效**;② 请求级覆盖未实现(本批只做会话级);③ **§7-5 的「上下文发送角色标记」只完成存储+DTO 半边**——消息 persona 已落库且 DTO 已带,但模型上下文不从 chat_messages 重建,「第 N 条是谁说的」尚未进上下文(需确认是否属批次 2);④「切角色重建摘要」当前是空操作(压缩未接线);⑤ thinking 旋钮仅在流式路径生效(非流式 agent.RunStep 不带,A 批次既有性质)
- 验收:go build/vet/test 全绿 + linux/amd64 与 darwin/arm64 交叉编译(既有 flake 本轮未触发;同批 session_orchestrator.go 一度 501 行 → 抽出 session_tail.go)
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@@ -20,6 +20,15 @@ type SessionEnv struct {
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// true only for the owner's private conversation; group chats and strangers
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// are read-only (design/02 §3, design/11 §2).
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MemWritable bool
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// PersonaID is the role this conversation speaks as (design/22 §2/§4.2), resolved
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// per turn by the caller (normally the gateway's session-binding resolver). Empty
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// means "inherit the loop's configured role" (Options.PersonaID, the global default
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// role), which keeps every pre-multi-character caller — channelbridge, backthink,
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// internal autonomous passes — behaving exactly as before. It scopes the system
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// prompt, the memory namespace, the emotion machine and the thinking budget; it is
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// NOT an identity or permission input: ActorEnv/MemWritable alone decide access
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// (project red line).
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PersonaID string
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}
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// Restricted reports whether this is a group-chat or stranger conversation, i.e.
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@@ -29,7 +38,10 @@ func (e SessionEnv) Restricted() bool { return !e.MemWritable }
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// OwnerEnv returns the full-access owner session environment (private
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// conversation, memory read+write). It is the Web main-session and internal
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// automated-task default, matching the pre-existing owner-full behavior.
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// automated-task default, matching the pre-existing owner-full behavior. It binds
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// no explicit role (PersonaID is empty), so the loop falls back to its configured
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// default role — the caller that knows the session's role sets PersonaID on the
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// returned value (design/22 §4.2).
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func OwnerEnv() SessionEnv {
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return SessionEnv{ActorEnv: restrict.ActorOwner, MemWritable: true}
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}
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