Oops, fix item previews with bodyId=0!

The other day, I deleted what was apparently a load-bearing glitch row, lol 😂

We had a row in pet_types that somehow had `body_id = 0`. And I guess that was causing this query to return some species, even though that body has no species.

Here, I'm adding support for the special `representsAllBodies` body's species to be null. The client seems chill with it, we weren't using that property in that situation anyway!

src/server/types/Item.js

@@ -457,12 +457,15 @@ const resolvers = {
           GROUP BY swf_assets.body_id
           -- We have some invalid data where the asset has a body ID that
           -- matches no pet type. Huh! Well, ignore those bodies!
-          HAVING speciesId IS NOT NULL;
+          HAVING speciesId IS NOT NULL OR bodyId = 0;
         `,
         [id]
       );
       return rows.map((row) => ({
-        body: { id: row.bodyId, species: { id: row.speciesId } },
+        body: {
+          id: row.bodyId,
+          species: row.speciesId ? { id: row.speciesId } : null,
+        },
         zones: row.zoneIds.split(",").map((zoneId) => ({ id: zoneId })),
       }));
     },

src/server/types/PetAppearance.js

@@ -49,14 +49,16 @@ const typeDefs = gql`
 
   type Body @cacheControl(maxAge: ${oneDay}, staleWhileRevalidate: ${oneWeek}) {
     id: ID!
-    species: Species!
+
+    # Whether this is the special body type that represents fitting _all_ pets.
+    representsAllBodies: Boolean!
+
+    # The species this body belongs to. Null if representsAllBodies is true.
+    species: Species
 
     # A PetAppearance that has this body. Prefers Blue (or the optional
     # preferredColorId), and happy poses.
     canonicalAppearance(preferredColorId: ID): PetAppearance
-
-    # Whether this is the special body type that represents fitting _all_ pets.
-    representsAllBodies: Boolean!
   }
 
   type PetAppearance @cacheControl(maxAge: ${oneHour}, staleWhileRevalidate: ${oneWeek}) {
@@ -188,7 +190,10 @@ const resolvers = {
   },
 
   Body: {
-    species: ({ species }) => {
+    species: ({ id, species }) => {
+      if (id == "0") {
+        return null;
+      }
       if (species) {
         return species;
       }