feat: migrate 5 evolve/momentum templates from TRM4 (algo #8)

tests/unit/test_evolve_prompts_present.py

@@ -0,0 +1,25 @@
+"""校验 5 个进化/动量模板存在且输出契约关键词与解析代码对齐。"""
+from pathlib import Path
+
+import pytest
+
+_PROMPTS_DIR = Path("prompts")
+
+
+@pytest.mark.parametrize(
+    "name, required_tokens",
+    [
+        ("evolve_skill.md", ["suggestions", "edits"]),
+        ("evolve_system.md", ["suggestions", "edits"]),
+        ("evolve_tool.md", ["edits_extract", "edits_verify"]),
+        ("evolve_rank.md", ["selected_indices"]),
+        ("slow_momentum.md", ["slow_update_content"]),
+    ],
+)
+def test_evolve_template_present_and_contract(name: str, required_tokens: list[str]) -> None:
+    path = _PROMPTS_DIR / name
+    assert path.exists(), f"缺模板: {path}"
+    text = path.read_text(encoding="utf-8")
+    assert text.strip(), f"模板为空: {path}"
+    for token in required_tokens:
+        assert token in text, f"{name} 缺输出契约关键词 {token!r}（与解析代码不对齐）"