feat: simplify queue naming, remove stale docs, add Queue CRDs

- Queue name now just 'poimen-chunks' (no project suffix)
- Delete outdated CI/DESIGN docs (CLAUDE.md is source of truth)
- Add k8s/infra/queue.yaml: poimen-chunks + DLQ (Ready)
- Update test to expect new queue name format

crates/mem-cli/src/gateway_queue_adapter.rs

@@ -217,8 +217,8 @@ impl GatewayQueueAdapter {
         }
     }
 
-    fn queue_name(&self, project: &str) -> String {
-        format!("{}-{}", self.default_queue_prefix, project)
+    fn queue_name(&self, _project: &str) -> String {
+        self.default_queue_prefix.clone()
     }
 }
 
@@ -505,7 +505,7 @@ mod tests {
             "test-token".to_string(),
         );
 
-        assert_eq!(adapter.queue_name("myproject"), "poimen-chunks-myproject");
+        assert_eq!(adapter.queue_name("myproject"), "poimen-chunks");
     }
 
     #[test]