fix: use Text for created_at, fix show-bug in ToJSON, add /cook-history route

src/Roux/Server.hs

@@ -649,10 +649,16 @@ handleRequest state db request respond = do
                 [("Content-Type", "application/json")]
                 body
         -- Cook history page (all entries across recipes)
-        ["cook-log"] -> do
+        ["cook-history"] -> do
             entries <- CookLog.fetchAllEntries db
             let grouped = groupEntries entries
             respond $ htmlResponse (Html.cookHistoryPage grouped)
+        -- Cook log JSON endpoint for all entries
+        ["cook-log"] -> do
+            entries <- CookLog.fetchAllEntries db
+            respond $ Wai.responseLBS HTTP.status200
+                [("Content-Type", "application/json")]
+                (A.encode entries)
         _ -> respond notFound
 
 -- | Handle POST /cook-log/{filename}