feat: implement more of playback and reply flow

CLAUDE.md

@@ -5,6 +5,8 @@
 - Orion is the api server which lives in the `go/` folder
 - `cpp/` points to our prototype of a C++ Qt widgets client
 
+Whenever implementing anything, make sure to take into account best practices without over-engineering.
+
 ## Electron App
 ### Quality
 We care about overall architectural quality and keeping consistent patterns according to best practices.
@@ -16,3 +18,8 @@ As an example, we have as high of a bar as a product team like Linear, which out
 
 ### Design system
 Whenever possible, we should use the design system components. If we need to add a new component from the available ones in [shadcn](https://ui.shadcn.com/docs/components), we should add it to the design system (using `shadcn add _`) and use it in the app.
+
+### Implementation completeness
+When adding a feature on the client side, make sure that the api actually supports it by just checking orion implementation all the way through.
+
+IF you find that the API is poorly designed, please suggest changes to improve the client experience.