Remove hard-coded project names from samples

samples/self-improving/compose.dev.yaml

@@ -8,7 +8,6 @@
 # coding agent's edits land in your working tree. The local model is a small
 # one so it runs on a laptop; expect much lower edit quality than the
 # deployed Vertex AI model — local is for testing the loop, not the quality.
-name: self-improving-dev
 services:
   dev:
     build:

samples/self-improving/compose.yaml

@@ -1,4 +1,3 @@
-name: self-improving
 services:
   # The production to-do app. Runs a Next.js production build with no source
   # code, no agent, and no admin UI. Exactly one ingress port keeps it