fix(recipes): normalize newlines + add update_recipe (v0.6.1)

Bug fix: literal backslash-n sequences in ingredients/instructions are now
converted to real newline characters before sending to the API, so the server
correctly splits ingredient lines into ingredientsList[].

New tool: update_recipe — partial update via mprecipeput with recipe.metaId;
fetches current recipe in the same session to verify can_update and supply
name fallback. Verified: recipe.metaId triggers update (not create).

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 = "0.6.0"
+version = "0.6.1"
 description = "MCP server for Family Wall — read your family's lists and tasks via Claude"
 readme = "README.md"
 requires-python = ">=3.12"