feat: start fresh research chats while preserving deck context

src/features/research/research-panel.css

@@ -11,6 +11,11 @@
   overflow: hidden;
 }
 .research-heading {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  flex-wrap: wrap;
+  gap: 0.5rem;
   padding: 1rem;
   border-bottom: 1px solid var(--border);
 }
@@ -18,6 +23,12 @@
   margin: 0;
   font-size: 1rem;
 }
+.research-heading p {
+  width: 100%;
+}
+.research-heading button {
+  font-size: 0.75rem;
+}
 .research-heading p,
 .research-context {
   margin: 0.5rem 0 0;