feat: add persisted batch text testing

backend/db/models.py

@@ -422,3 +422,115 @@ class WebhookDelivery(Base):
     updated_at: Mapped[datetime] = mapped_column(
         DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
     )
+
+
+class TestSuite(Base):
+    """A persisted group of text-based assistant test cases."""
+
+    __tablename__ = "test_suites"
+
+    id: Mapped[str] = mapped_column(String(40), primary_key=True)
+    name: Mapped[str] = mapped_column(String(128))
+    description: Mapped[str] = mapped_column(String(2048), default="")
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now()
+    )
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
+    )
+
+
+class TestCase(Base):
+    """One editable test definition; nested turns remain one JSON document."""
+
+    __tablename__ = "test_cases"
+    __table_args__ = (
+        UniqueConstraint("suite_id", "sort_order", name="uq_test_case_suite_order"),
+    )
+
+    id: Mapped[str] = mapped_column(String(40), primary_key=True)
+    suite_id: Mapped[str] = mapped_column(
+        String(40),
+        ForeignKey("test_suites.id", ondelete="CASCADE"),
+        index=True,
+    )
+    name: Mapped[str] = mapped_column(String(128))
+    description: Mapped[str] = mapped_column(String(2048), default="")
+    input_mode: Mapped[str] = mapped_column(
+        String(40), default="fixed_script_text", index=True
+    )
+    definition: Mapped[dict] = mapped_column(JSONB, default=dict)
+    sort_order: Mapped[int] = mapped_column(Integer, default=0)
+    last_result: Mapped[str] = mapped_column(String(16), default="not_run")
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now()
+    )
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
+    )
+
+
+class TestRun(Base):
+    """One immutable batch-run request plus its aggregate lifecycle state."""
+
+    __tablename__ = "test_runs"
+
+    id: Mapped[str] = mapped_column(String(40), primary_key=True)
+    assistant_id: Mapped[str | None] = mapped_column(
+        String(40),
+        ForeignKey("assistants.id", ondelete="SET NULL"),
+        nullable=True,
+        index=True,
+    )
+    assistant_name: Mapped[str] = mapped_column(String(128), default="")
+    title: Mapped[str] = mapped_column(String(256), default="批量测试")
+    status: Mapped[str] = mapped_column(String(16), index=True, default="queued")
+    config: Mapped[dict] = mapped_column(JSONB, default=dict)
+    stop_reason: Mapped[str | None] = mapped_column(String(32), nullable=True)
+    cancel_requested: Mapped[bool] = mapped_column(Boolean, default=False)
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now()
+    )
+    started_at: Mapped[datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True
+    )
+    finished_at: Mapped[datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True
+    )
+
+
+class TestRunCase(Base):
+    """Run-local test case snapshot and detailed execution result."""
+
+    __tablename__ = "test_run_cases"
+    __table_args__ = (
+        UniqueConstraint("run_id", "test_case_id", name="uq_test_run_case"),
+    )
+
+    id: Mapped[str] = mapped_column(String(40), primary_key=True)
+    run_id: Mapped[str] = mapped_column(
+        String(40),
+        ForeignKey("test_runs.id", ondelete="CASCADE"),
+        index=True,
+    )
+    test_case_id: Mapped[str | None] = mapped_column(
+        String(40),
+        ForeignKey("test_cases.id", ondelete="SET NULL"),
+        nullable=True,
+        index=True,
+    )
+    test_case_name: Mapped[str] = mapped_column(String(128))
+    suite_id: Mapped[str | None] = mapped_column(String(40), nullable=True)
+    position: Mapped[int] = mapped_column(Integer, default=0)
+    case_snapshot: Mapped[dict] = mapped_column(JSONB, default=dict)
+    status: Mapped[str] = mapped_column(String(16), index=True, default="waiting")
+    attempt_count: Mapped[int] = mapped_column(Integer, default=0)
+    max_attempts: Mapped[int] = mapped_column(Integer, default=1)
+    result: Mapped[dict] = mapped_column(JSONB, default=dict)
+    execution_error: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
+    started_at: Mapped[datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True
+    )
+    finished_at: Mapped[datetime | None] = mapped_column(
+        DateTime(timezone=True), nullable=True
+    )