feat(tui): add v2 terminal interface

packages/opencode/src/cli/cmd/run/scrollback.writer.tsx

@@ -338,7 +338,6 @@ export function turnSummaryWriter(input: { agent: string; model: string; duratio
     () => (
       <box width="100%" height={1}>
         <text wrapMode="none" truncate>
-          <span style={{ fg: input.theme.block.highlight }}>▣ </span>
           <span style={{ fg: input.theme.block.text }}>{input.agent}</span>
           <span style={{ fg: input.theme.block.muted }}>
             {" "}

packages/opencode/src/cli/cmd/run/turn-summary.ts

@@ -10,7 +10,7 @@ export function turnSummaryCommit(input: {
 }): StreamCommit {
   return {
     kind: "system",
-    text: `▣ ${input.agent} · ${input.model} · ${input.duration}`,
+    text: `${input.agent} · ${input.model} · ${input.duration}`,
     phase: "final",
     source: "system",
     summary: {