Refine travel reimbursement steward flow

Align planner, runtime rules, and policy assets so travel guidance
matches the updated reimbursement workflow.

server/src/app/schemas/steward.py

@@ -8,11 +8,13 @@ from pydantic import BaseModel, Field
 StewardTaskType = Literal["expense_application", "reimbursement"]
 StewardAssignedAgent = Literal["application_assistant", "reimbursement_assistant"]
 StewardPlanningSource = Literal["llm_function_call", "rule_fallback"]
+StewardPlanNextAction = Literal["confirm_flow", "confirm_task", "delegate_task", "none"]
 StewardSlotDecisionSource = Literal["llm_function_call", "rule_fallback"]
 StewardSlotNextAction = Literal["ask_user", "render_preview"]
 StewardRuntimeDecisionSource = Literal["llm_function_call", "rule_fallback"]
 StewardRuntimeNextAction = Literal[
     "plan_new_tasks",
+    "continue_selected_flow",
     "submit_current_application",
     "continue_next_task",
     "fill_current_slot",
@@ -29,6 +31,8 @@ StewardTaskStatus = Literal[
     "blocked",
 ]
 StewardConfirmationStatus = Literal["pending", "confirmed", "rejected"]
+StewardFlowId = Literal["travel_application", "travel_reimbursement"]
+StewardPendingFlowStatus = Literal["none", "pending", "confirmed", "rejected"]
 
 
 class StewardAttachmentInput(BaseModel):
@@ -90,15 +94,39 @@ class StewardConfirmationAction(BaseModel):
     payload: dict[str, Any] = Field(default_factory=dict, description="确认后继续执行所需载荷。")
 
 
+class StewardCandidateFlow(BaseModel):
+    flow_id: StewardFlowId = Field(description="候选业务流程。")
+    label: str = Field(description="用户可见候选流程名称。")
+    confidence: float = Field(default=0.0, ge=0.0, le=1.0, description="候选流程置信度。")
+    reason: str = Field(default="", description="候选流程依据。")
+    ontology_fields: dict[str, str] = Field(default_factory=dict, description="候选流程可继承的 canonical ontology 字段。")
+    missing_fields: list[str] = Field(default_factory=list, description="候选流程仍缺失的 canonical ontology 字段。")
+
+
+class StewardPendingFlowConfirmation(BaseModel):
+    status: StewardPendingFlowStatus = Field(default="none", description="候选流程确认状态。")
+    source_message: str = Field(default="", description="触发候选流程确认的用户原始输入。")
+    reason: str = Field(default="", description="需要确认流程方向的原因。")
+    candidate_flows: list[StewardCandidateFlow] = Field(default_factory=list, description="候选业务流程。")
+
+
 class StewardPlanResponse(BaseModel):
     plan_id: str = Field(description="小财管家计划 ID。")
     plan_status: str = Field(default="needs_confirmation", description="计划状态。")
     planning_source: StewardPlanningSource = Field(default="rule_fallback", description="计划生成来源。")
+    next_action: StewardPlanNextAction = Field(default="confirm_task", description="计划完成后的下一步动作。")
+    conversation_id: str = Field(default="", description="持久化会话 ID。")
+    steward_state: dict[str, Any] = Field(default_factory=dict, description="小财管家跨轮业务状态。")
     summary: str = Field(description="计划摘要。")
     thinking_events: list[StewardThinkingEvent] = Field(default_factory=list, description="过程摘要事件。")
     tasks: list[StewardTask] = Field(default_factory=list, description="拆解后的任务。")
     attachment_groups: list[StewardAttachmentGroup] = Field(default_factory=list, description="附件归集建议。")
     confirmation_groups: list[StewardConfirmationAction] = Field(default_factory=list, description="等待用户确认的动作。")
+    pending_flow_confirmation: StewardPendingFlowConfirmation = Field(
+        default_factory=StewardPendingFlowConfirmation,
+        description="申请/报销流程不明确时等待用户确认的候选流程。",
+    )
+    candidate_flows: list[StewardCandidateFlow] = Field(default_factory=list, description="等待用户确认的候选流程快捷列表。")
     model_call_traces: list[dict[str, Any]] = Field(default_factory=list, description="模型工具调用轨迹。")
 
 
@@ -146,4 +174,18 @@ class StewardRuntimeDecisionResponse(BaseModel):
     question: str = Field(default="", description="需要追问用户时展示的问题。")
     response_text: str = Field(default="", description="无需调用工具时给用户的简短回复。")
     rationale: str = Field(default="", description="面向用户的简短判断依据，不暴露推理链。")
+    steward_state: dict[str, Any] = Field(default_factory=dict, description="小财管家更新后的跨轮业务状态。")
     model_call_traces: list[dict[str, Any]] = Field(default_factory=list, description="模型工具调用轨迹。")
+
+
+class StewardFlowStatePatch(BaseModel):
+    active_flow: StewardFlowId = Field(description="本轮对话正在推进的业务流程。")
+    flow_id: StewardFlowId = Field(description="需要合并字段的目标业务流程。")
+    intent: str = Field(default="", description="本轮识别出的业务意图。")
+    status: str = Field(default="collecting", description="流程状态。")
+    fields: dict[str, Any] = Field(default_factory=dict, description="待写入流程的本体字段 patch。")
+    missing_fields: list[str] = Field(default_factory=list, description="仍缺失的 canonical ontology 字段。")
+    application_claim_id: str = Field(default="", description="出差申请流程已生成的申请单 ID。")
+    linked_application_claim_id: str = Field(default="", description="报销流程关联的申请单 ID。")
+    attachments: list[dict[str, Any]] = Field(default_factory=list, description="流程关联附件摘要。")
+    evidence: list[dict[str, Any]] = Field(default_factory=list, description="字段来源证据。")