Reject malformed text imports before creating junk recipes

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

mealie_mcp/server.py

@@ -288,6 +288,17 @@ def import_recipe_text(text: str, source_url: str | None = None) -> dict[str, An
     roundup, a YouTube description, or a social caption. Build the text in Swedish
     with ``Titel`` / ``Portioner`` / ``Ingredienser`` / ``Gör så här`` sections.
     """
+    required = ("Titel", "Ingredienser", "Gör så här")
+    missing = [
+        heading
+        for heading in required
+        if not re.search(rf"(?im)^\s*{re.escape(heading)}\s*:", text)
+    ]
+    if missing:
+        raise ValueError(
+            "Text import requires explicit Swedish section headings; missing: "
+            + ", ".join(missing)
+        )
     payload: dict[str, Any] = {"data": text}
     if source_url:
         payload["url"] = source_url