Clean plan data on plan save

kitchen/sqlx-data.json

@@ -490,6 +490,16 @@
     },
     "query": "select session_value from sessions where id = ?"
   },
+  "93af0c367a0913d49c92aa69022fa30fc0564bd4dbab7f3ae78673a01439cd6e": {
+    "describe": {
+      "columns": [],
+      "nullable": [],
+      "parameters": {
+        "Right": 2
+      }
+    },
+    "query": "delete from plan_recipes where user_id = ? and plan_date = ?"
+  },
   "95fbc362a2e17add05218a2dac431275b5cc55bd7ac8f4173ee10afefceafa3b": {
     "describe": {
       "columns": [

kitchen/src/web/storage/mod.rs

@@ -534,6 +534,13 @@ impl APIStore for SqliteStore {
     ) -> Result<()> {
         let user_id = user_id.as_ref();
         let mut transaction = self.pool.as_ref().begin().await?;
+        sqlx::query!(
+            "delete from plan_recipes where user_id = ? and plan_date = ?",
+            user_id,
+            date,
+        )
+        .execute(&mut transaction)
+        .await?;
         for (id, count) in recipe_counts {
             sqlx::query_file!(
                 "src/web/storage/save_meal_plan.sql",