feat: add OTHER list type + FW_DEBUG task-field logging (v0.8.3)

- create_list now accepts list_type="OTHER" (previously rejected)
- get_tasks logs unknown task fields to stderr when FW_DEBUG=1 (preparation for repeating-task field discovery)
- README, CLAUDE.md, version bumped to 0.8.3

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

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "mcp-familywall"
-version = "0.8.2"
+version = "0.8.3"
 description = "MCP server for Family Wall — read your family's lists and tasks via Claude"
 readme = "README.md"
 requires-python = ">=3.12"