fix: #33 内置多模态工具现在在工具市场 /api/v1/tools 中可见

list_tools 端点合并内置工具（image_ocr/image_vision/speech_to_text/text_to_speech 等），
按 scope=public/all 时自动包含，无需额外种子到 DB。

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/app/api/orchestration_templates.py

@@ -0,0 +1,162 @@
+"""
+编排模板 CRUD API
+"""
+from typing import List, Optional
+from fastapi import APIRouter, Depends, HTTPException, Query
+from pydantic import BaseModel, Field
+from sqlalchemy.orm import Session
+
+from app.core.database import get_db
+from app.api.auth import get_current_user
+from app.models.user import User
+from app.models.orchestration_template import OrchestrationTemplate
+
+router = APIRouter(prefix="/api/v1/orchestration-templates", tags=["orchestration-templates"])
+
+
+class TemplateCreate(BaseModel):
+    name: str
+    description: str = ""
+    nodes: List[dict] = Field(..., description="编排节点列表")
+    edges: List[dict] = Field(..., description="编排连线列表")
+
+
+class TemplateUpdate(BaseModel):
+    name: Optional[str] = None
+    description: Optional[str] = None
+    nodes: Optional[List[dict]] = None
+    edges: Optional[List[dict]] = None
+
+
+class TemplateResponse(BaseModel):
+    id: str
+    name: str
+    description: str
+    nodes: List[dict]
+    edges: List[dict]
+    user_id: Optional[str] = None
+    created_at: Optional[str] = None
+    updated_at: Optional[str] = None
+
+
+@router.get("", response_model=List[TemplateResponse])
+async def list_templates(
+    search: Optional[str] = Query(None, description="按名称搜索"),
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    """获取当前用户的编排模板列表"""
+    q = db.query(OrchestrationTemplate).filter(OrchestrationTemplate.user_id == current_user.id)
+    if search:
+        q = q.filter(OrchestrationTemplate.name.contains(search))
+    q = q.order_by(OrchestrationTemplate.updated_at.desc())
+    templates = q.all()
+    return [
+        TemplateResponse(
+            id=t.id, name=t.name, description=t.description or "",
+            nodes=t.nodes or [], edges=t.edges or [],
+            user_id=t.user_id,
+            created_at=t.created_at.isoformat() if t.created_at else None,
+            updated_at=t.updated_at.isoformat() if t.updated_at else None,
+        )
+        for t in templates
+    ]
+
+
+@router.post("", response_model=TemplateResponse)
+async def create_template(
+    body: TemplateCreate,
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    """创建编排模板"""
+    template = OrchestrationTemplate(
+        name=body.name,
+        description=body.description,
+        nodes=body.nodes,
+        edges=body.edges,
+        user_id=current_user.id,
+    )
+    db.add(template)
+    db.commit()
+    db.refresh(template)
+    return TemplateResponse(
+        id=template.id, name=template.name, description=template.description or "",
+        nodes=template.nodes or [], edges=template.edges or [],
+        user_id=template.user_id,
+        created_at=template.created_at.isoformat() if template.created_at else None,
+        updated_at=template.updated_at.isoformat() if template.updated_at else None,
+    )
+
+
+@router.get("/{template_id}", response_model=TemplateResponse)
+async def get_template(
+    template_id: str,
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    """获取模板详情"""
+    template = db.query(OrchestrationTemplate).filter(
+        OrchestrationTemplate.id == template_id,
+        OrchestrationTemplate.user_id == current_user.id,
+    ).first()
+    if not template:
+        raise HTTPException(status_code=404, detail="模板不存在")
+    return TemplateResponse(
+        id=template.id, name=template.name, description=template.description or "",
+        nodes=template.nodes or [], edges=template.edges or [],
+        user_id=template.user_id,
+        created_at=template.created_at.isoformat() if template.created_at else None,
+        updated_at=template.updated_at.isoformat() if template.updated_at else None,
+    )
+
+
+@router.put("/{template_id}", response_model=TemplateResponse)
+async def update_template(
+    template_id: str,
+    body: TemplateUpdate,
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    """更新模板"""
+    template = db.query(OrchestrationTemplate).filter(
+        OrchestrationTemplate.id == template_id,
+        OrchestrationTemplate.user_id == current_user.id,
+    ).first()
+    if not template:
+        raise HTTPException(status_code=404, detail="模板不存在")
+    if body.name is not None:
+        template.name = body.name
+    if body.description is not None:
+        template.description = body.description
+    if body.nodes is not None:
+        template.nodes = body.nodes
+    if body.edges is not None:
+        template.edges = body.edges
+    db.commit()
+    db.refresh(template)
+    return TemplateResponse(
+        id=template.id, name=template.name, description=template.description or "",
+        nodes=template.nodes or [], edges=template.edges or [],
+        user_id=template.user_id,
+        created_at=template.created_at.isoformat() if template.created_at else None,
+        updated_at=template.updated_at.isoformat() if template.updated_at else None,
+    )
+
+
+@router.delete("/{template_id}")
+async def delete_template(
+    template_id: str,
+    db: Session = Depends(get_db),
+    current_user: User = Depends(get_current_user),
+):
+    """删除模板"""
+    template = db.query(OrchestrationTemplate).filter(
+        OrchestrationTemplate.id == template_id,
+        OrchestrationTemplate.user_id == current_user.id,
+    ).first()
+    if not template:
+        raise HTTPException(status_code=404, detail="模板不存在")
+    db.delete(template)
+    db.commit()
+    return {"detail": "ok"}