Update todo

TODO.md

@@ -32,6 +32,18 @@ A lot of modules in hyaenidae-server have circular dependencies, and a few are m
 lines long, each. These should be separated where possible into smaller modules which create a
 dependency DAG
 
+## Validation
+Right now, a lot of the validation happens in multiple places in the codebase, which is not great. I
+think there should be a Single Way we do validation in order to keep ourselves sane in the future
+when we're trying to debug stuff
+
+Tasks:
+- Enable validation on the [Thing]Changes structs
+    - ReactChanges
+- Distinguish between local & federated when validation maxium lengths
+- Make a global maximum length that things get truncated to if they're too long
+- Expose validation failures in the user interface
+
 ## Pagination
 Tasks:
 - Enable pagination for notifications
@@ -74,6 +86,7 @@ Tasks:
 - Enable viewing of closed reports
 
 ## Reacts
+Rethink whether we actually want to do reacts. It may be that just having Likes is fine
 Reacts are similar to "likes" on other platforms, but do not get added to a collection for a given
 profile. Reacts only notify the author of the item being reacted to.