feat(agents): Drop the hover Copy button from agent messages

src/features/agents/Session.module.css

@@ -118,7 +118,7 @@
   outline: none;
 }
 
-/* A message with its actions, shown on hover. */
+/* Your message with its actions, shown on hover. */
 .message {
   position: relative;
 }
@@ -138,19 +138,6 @@
   -webkit-user-select: none;
   user-select: none;
 }
-/* Over the bottom-right corner of an agent message (code blocks keep the top one), taking no room of its own. */
-.floatingActions {
-  position: absolute;
-  z-index: 1;
-  bottom: -14px;
-  right: 0;
-  margin: 0;
-  padding: 1px;
-  border: 1px solid var(--border);
-  border-radius: var(--radius-small);
-  background: var(--bg-popup);
-  box-shadow: var(--shadow-tooltip);
-}
 .message:hover .messageActions,
 .messageActions:focus-within {
   opacity: 1;

src/features/agents/SessionEditor.tsx

@@ -368,14 +368,7 @@ function Entry({ task, entry }: { task: AgentTask; entry: AgentEntry }) {
     case "user":
       return <UserMessage task={task} entry={entry} />;
     case "agent":
-      return (
-        <div className={styles.message}>
-          <Markdown text={entry.text} cwd={task.cwd} />
-          <div className={clsx(styles.messageActions, styles.floatingActions)}>
-            <IconButton icon="copy" title="Copy" size="small" onClick={() => void copyText(entry.text)} />
-          </div>
-        </div>
-      );
+      return <Markdown text={entry.text} cwd={task.cwd} />;
     case "thought":
       return (
         <details className={styles.thought}>