Merge branch 'main' into fix/workspace-scoped-cron-store

Keep cron state workspace-scoped while only migrating legacy jobs into the default workspace. This preserves seamless upgrades for existing installs without polluting intentionally new workspaces.

tests/test_config_paths.py

@@ -10,6 +10,7 @@ from nanobot.config.paths import (
     get_media_dir,
     get_runtime_subdir,
     get_workspace_path,
+    is_default_workspace,
 )
 
 
@@ -40,3 +41,9 @@ def test_shared_and_legacy_paths_remain_global() -> None:
 def test_workspace_path_is_explicitly_resolved() -> None:
     assert get_workspace_path() == Path.home() / ".nanobot" / "workspace"
     assert get_workspace_path("~/custom-workspace") == Path.home() / "custom-workspace"
+
+
+def test_is_default_workspace_distinguishes_default_and_custom_paths() -> None:
+    assert is_default_workspace(None) is True
+    assert is_default_workspace(Path.home() / ".nanobot" / "workspace") is True
+    assert is_default_workspace("~/custom-workspace") is False