improve mcp CLI + ability to debug MCP oauth (#5980)

packages/opencode/src/cli/cmd/tui/routes/session/sidebar.tsx

@@ -29,6 +29,16 @@ export function Sidebar(props: { sessionID: string }) {
   // Sort MCP servers alphabetically for consistent display order
   const mcpEntries = createMemo(() => Object.entries(sync.data.mcp).sort(([a], [b]) => a.localeCompare(b)))
 
+  // Count connected and error MCP servers for collapsed header display
+  const connectedMcpCount = createMemo(() => mcpEntries().filter(([_, item]) => item.status === "connected").length)
+  const errorMcpCount = createMemo(
+    () =>
+      mcpEntries().filter(
+        ([_, item]) =>
+          item.status === "failed" || item.status === "needs_auth" || item.status === "needs_client_registration",
+      ).length,
+  )
+
   const cost = createMemo(() => {
     const total = messages().reduce((sum, x) => sum + (x.role === "assistant" ? x.cost : 0), 0)
     return new Intl.NumberFormat("en-US", {
@@ -98,6 +108,13 @@ export function Sidebar(props: { sessionID: string }) {
                   </Show>
                   <text fg={theme.text}>
                     <b>MCP</b>
+                    <Show when={!expanded.mcp}>
+                      <span style={{ fg: theme.textMuted }}>
+                        {" "}
+                        ({connectedMcpCount()} active
+                        {errorMcpCount() > 0 ? `, ${errorMcpCount()} error${errorMcpCount() > 1 ? "s" : ""}` : ""})
+                      </span>
+                    </Show>
                   </text>
                 </box>
                 <Show when={mcpEntries().length <= 2 || expanded.mcp}>