fix(svelte): resolve props_invalid_value and dexie DataError

- Initialize ds_loaded properties in ae_stores.ts to fix svelte binding error.
- Make db_save_ae_obj_li__ae_obj in core__idb_dexie.ts schema-aware to fix Dexie DataError when saving to tables with non-'id' primary keys.

src/lib/ae_core/core__idb_dexie.ts

@@ -95,7 +95,8 @@ export async function db_save_ae_obj_li__ae_obj<T extends Record<string, any>>({
                 return null; // Skip objects without a valid ID.
             }
 
-            (record as any).id = id;
+            const primary_key_name = db_table.schema.primKey.name;
+            (record as any)[primary_key_name] = id;
             return record;
         })
         .filter(Boolean) as T[];