Add verified rollback for failed recipe imports

Co-authored-by: Bumble <bumble@agents.famfallman.com>
Co-authored-by: fredamn76 <fredrik.fallman@gmail.com>
Signed-off-by: fredamn76 <fredrik.fallman@gmail.com>

mealie_mcp/server.py

@@ -335,6 +335,39 @@ def patch_recipe(slug_or_id: str, patch: dict[str, Any]) -> dict[str, Any]:
     return get_recipe(slug_or_id)
 
 
+@mcp.tool()
+def delete_recipe(slug_or_id: str, confirm_slug: str) -> dict[str, Any]:
+    """Delete exactly one recipe, with explicit slug confirmation and read-back proof.
+
+    This is primarily the rollback path for failed imports and marked test recipes.
+    The caller must first read the recipe and pass its exact stored slug as
+    ``confirm_slug``. Names and ids are not accepted as confirmation.
+    """
+    recipe = get_recipe(slug_or_id)
+    stored_slug = recipe.get("slug") or ""
+    if confirm_slug != stored_slug:
+        raise ValueError(
+            f"Deletion confirmation does not match stored slug {stored_slug!r}"
+        )
+
+    with _client() as client:
+        response = client.delete(f"/api/recipes/{stored_slug}")
+        _raise_for_status(response)
+        probe = client.get(f"/api/recipes/{stored_slug}")
+    if probe.status_code != 404:
+        raise RuntimeError(
+            f"Delete returned {response.status_code}, but read-back returned "
+            f"{probe.status_code} instead of 404"
+        )
+    return {
+        "deleted": True,
+        "slug": stored_slug,
+        "name": recipe.get("name"),
+        "delete_status": response.status_code,
+        "readback_status": probe.status_code,
+    }
+
+
 def _unit_records() -> list[dict[str, Any]]:
     """The instance's own unit table — the authority for what `dl` and `msk` mean."""
     data = _request("GET", "/api/units", params={"perPage": 200})