baseline: Clover 独立仓库首次基线提交

将 Clover 从上层产品包旧仓库中独立出来,建立专属版本控制。
当前状态=纵切片端到端已打通(登录→选品→出文出图→审核→下载包),
M1文案质量去套路化已验收。此提交作为后续按核销清单逐条修复的基线。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend/app/models/__init__.py

@@ -0,0 +1,24 @@
+"""
+app/models/__init__.py — 统一导出所有模型，Alembic autogenerate 能扫到
+"""
+
+from app.models.user import LoginRecord, User, UserPreference
+from app.models.workspace import UserApiKey, Workspace, WorkspaceMember
+from app.models.product import BannedWord, BenchmarkNote, Product
+from app.models.task import (
+    DeliveryPackage,
+    GenerationTask,
+    ImageCandidate,
+    TextCandidate,
+)
+from app.models.flywheel import AiCallLog, PreferenceEvent
+from app.models.fission import FissionTask
+
+__all__ = [
+    "User", "LoginRecord", "UserPreference",
+    "Workspace", "WorkspaceMember", "UserApiKey",
+    "Product", "BenchmarkNote", "BannedWord",
+    "GenerationTask", "TextCandidate", "ImageCandidate",
+    "DeliveryPackage", "PreferenceEvent", "AiCallLog",
+    "FissionTask",
+]