fix(lists): circle scope support for get_lists, create_list, delete_list (v0.7.1)

- get_lists(scope): API scope parameter now used server-side; accepts circle
  metaId ("family/XXXX") or circle name; returns circle_id field per list
- create_list(circle_id): new optional param; passes as API scope param
- delete_list: derives circle from list metaId and passes scope for
  secondary-circle lists
- Added _circle_id_from_list_id() helper (taskList/FAMNUM_LISTNUM -> family/FAMNUM)
- SPEC.md: documented scope param for taskgettasklists, taskcreatelist, taskdeletelist
- Verified: familyId/circleId/id params ignored by API, only scope works

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/mcp_familywall/__init__.py

@@ -1 +1 @@
-__version__ = "0.7.0"
+__version__ = "0.7.1"