docs: backfill env template and migration notes for M2

tests/integration/test_redis_governance_time.py

@@ -56,9 +56,7 @@ def _advance_dependent_cases() -> set[str]:
 def test_meta_variants_cover_all_time_cases():
     """完整性守卫: 契约的时间用例集合 == 本文件变体集合(1:1 映射表机械化)。"""
     variants = {
-        name.removeprefix("test_variant_")
-        for name in globals()
-        if name.startswith("test_variant_")
+        name.removeprefix("test_variant_") for name in globals() if name.startswith("test_variant_")
     }
     assert variants == _advance_dependent_cases()
 

tests/unit/test_embedding.py

@@ -94,14 +94,10 @@ class TestEmbedTransport:
             assert payload == {"model": "embed-1", "input": ["a", "b"]}
             return httpx.Response(
                 200,
-                json=_ok_body(
-                    [[1.0, 0.0], [0.0, 1.0]], usage={"prompt_tokens": 5}, shuffle=True
-                ),
+                json=_ok_body([[1.0, 0.0], [0.0, 1.0]], usage={"prompt_tokens": 5}, shuffle=True),
             )
 
-        result = await _transport_with(handler).embed(
-            texts=["a", "b"], source=_src(), call_id="c"
-        )
+        result = await _transport_with(handler).embed(texts=["a", "b"], source=_src(), call_id="c")
         assert result.vectors == [[1.0, 0.0], [0.0, 1.0]]  # 乱序响应按 index 重排
         assert result.dim == 2
         assert result.prompt_tokens == 5 and result.usage_source == "measured"

tests/unit/test_soak_corpus.py

@@ -28,8 +28,11 @@ def _mini_harness_db(path):
         " completion_tokens INTEGER, stop_reason TEXT, steps_json TEXT)"
     )
     steps = [
-        {"thought": f"思考{i}", "tool_call": {"tool": "view_node", "args": {"i": i}},
-         "tool_output": f"输出{i}" * 50}
+        {
+            "thought": f"思考{i}",
+            "tool_call": {"tool": "view_node", "args": {"i": i}},
+            "tool_output": f"输出{i}" * 50,
+        }
         for i in range(3)
     ]
     conn.execute(