fix(#1769): 模板列表过滤无片段配置的无效模板，避免前端选中后400 (#1772)

Co-authored-by: xiaoxia <dev@xiaoxiajianji.com>
Co-committed-by: xiaoxia <dev@xiaoxiajianji.com>

packages/adapters/sqlalchemy_impl/template_repository.py

@@ -10,6 +10,7 @@ from __future__ import annotations
 import uuid
 from typing import List, Optional
 
+from sqlalchemy import or_
 from sqlalchemy.orm import Session
 
 from packages.adapters.sqlalchemy_impl.models import (
@@ -28,6 +29,20 @@ class SQLAlchemyTemplateRepository:
     def __init__(self, session: Session) -> None:
         self.session = session
 
+    def _filter_with_segment_configs(self, query):
+        """只保留在 template_clip_configs 或 template_segments 中存在片段配置的模板。
+
+        两张表都没有记录的模板无法用于生成（from-assets 会 400），
+        剪辑页选模板时应排除；模板编辑器不传 valid_only，仍可见全部模板。
+        """
+        has_clip_config = self.session.query(TemplateClipConfigModel.id).filter(
+            TemplateClipConfigModel.template_id == TemplateModel.id,
+        )
+        has_segment = self.session.query(TemplateSegmentModel.id).filter(
+            TemplateSegmentModel.template_id == TemplateModel.id,
+        )
+        return query.filter(or_(has_clip_config.exists(), has_segment.exists()))
+
     # ── Template CRUD ──
 
     def list_by_user(
@@ -40,11 +55,14 @@ class SQLAlchemyTemplateRepository:
         tag: Optional[str] = None,
         keyword: Optional[str] = None,
         mode: Optional[str] = None,
+        valid_only: bool = False,
     ) -> List[Template]:
         query = self.session.query(TemplateModel).filter(
             TemplateModel.user_id == user_id,
             TemplateModel.is_active.is_(True),
         )
+        if valid_only:
+            query = self._filter_with_segment_configs(query)
         if category:
             query = query.filter(TemplateModel.category == category)
         if mode:
@@ -173,11 +191,14 @@ class SQLAlchemyTemplateRepository:
         tag: Optional[str] = None,
         keyword: Optional[str] = None,
         mode: Optional[str] = None,
+        valid_only: bool = False,
     ) -> int:
         query = self.session.query(TemplateModel).filter(
             TemplateModel.user_id == user_id,
             TemplateModel.is_active.is_(True),
         )
+        if valid_only:
+            query = self._filter_with_segment_configs(query)
         if category:
             query = query.filter(TemplateModel.category == category)
         if mode: