初始化：独立 oclaw 仓库首提交

- 在 oclaw/ 下重新初始化 Git 仓库
- 补齐子仓库 .gitignore，避免提交本地运行态数据（_local、node_modules、logs 等）
- 提交当前工程代码与配置

Made-with: Cursor

tests/test_backup_retention.py

@@ -0,0 +1,38 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+import oclaw.platform.config.paths as paths_mod
+
+
+def _mkdir(p: Path) -> None:
+    p.mkdir(parents=True, exist_ok=True)
+    (p / "marker.txt").write_text("x", encoding="utf-8")
+
+
+def test_pre_merge_backup_retention_default_keep_3(tmp_path, monkeypatch) -> None:
+    data_dir = tmp_path / "oclaw" / "data"
+    for ts in ("20260101_000001", "20260101_000002", "20260101_000003", "20260101_000004", "20260101_000005"):
+        _mkdir(data_dir / f"_pre_merge_sqlite_{ts}")
+    monkeypatch.setenv("OPS_ASSISTANT_PREMERGE_BACKUP_KEEP", "")
+    monkeypatch.setattr(paths_mod, "PROJECT_ROOT", tmp_path)
+    paths_mod._cleanup_pre_merge_backups()
+
+    keep = sorted(p.name for p in data_dir.glob("_pre_merge_sqlite_*") if p.is_dir())
+    assert keep == [
+        "_pre_merge_sqlite_20260101_000003",
+        "_pre_merge_sqlite_20260101_000004",
+        "_pre_merge_sqlite_20260101_000005",
+    ]
+
+
+def test_pre_merge_backup_retention_respects_env_keep(tmp_path, monkeypatch) -> None:
+    data_dir = tmp_path / "oclaw" / "data"
+    for ts in ("20260101_000001", "20260101_000002", "20260101_000003"):
+        _mkdir(data_dir / f"_pre_merge_sqlite_{ts}")
+    monkeypatch.setenv("OPS_ASSISTANT_PREMERGE_BACKUP_KEEP", "1")
+    monkeypatch.setattr(paths_mod, "PROJECT_ROOT", tmp_path)
+    paths_mod._cleanup_pre_merge_backups()
+
+    keep = sorted(p.name for p in data_dir.glob("_pre_merge_sqlite_*") if p.is_dir())
+    assert keep == ["_pre_merge_sqlite_20260101_000003"]