Remove unused components and clean up codebase

- Remove orchestrator.tsx and orchestrator-messages-view.tsx
- Remove conversation-selector.tsx
- Remove thinking-sheet.tsx and agent-thought-content.tsx
- Remove home-header.tsx
- Update message.tsx and agent-stream-view.tsx
- Add tool call detail improvements
- Add lz-string dependency for compression

packages/app/src/components/tool-call-details.tsx

@@ -87,6 +87,14 @@ function summarizeToolCallDisplay(display: ToolCallDisplay): ToolCallDisplaySumm
         },
       };
     }
+    case "thinking": {
+      const contentLength = display.content.length;
+      return {
+        displayType: display.type,
+        totalChars: contentLength,
+        detail: { contentLength },
+      };
+    }
     default:
       return assertNever(display);
   }
@@ -227,6 +235,20 @@ export function ToolCallDetailsContent({
         ) : null}
       </View>
     );
+  } else if (display.type === "thinking") {
+    // Thinking: display the content as plain text
+    sections.push(
+      <View key="thinking" style={styles.section}>
+        <ScrollView
+          style={[styles.scrollArea, { maxHeight }]}
+          contentContainerStyle={styles.scrollContent}
+          nestedScrollEnabled
+          showsVerticalScrollIndicator={true}
+        >
+          <Text selectable style={styles.scrollText}>{display.content}</Text>
+        </ScrollView>
+      </View>
+    );
   } else {
     // Generic tool: show input/output as key-value pairs
     if (display.input.length > 0) {