feat(ui,server): surface active instance service URLs in About settings (#2669)

Show the running instance's local server URL and tunnel URL (when a
tunnel is active) as labeled, click-to-open buttons on the About page.
/api/system/info now reports the instance port and tunnel URL, resolved
lazily from the tunnel runtime so each Git-worktree instance identifies
itself in the UI without parsing terminal output.

Refs OPE-194

packages/web/server/lib/opencode/bootstrap-runtime.js

@@ -19,6 +19,8 @@ export const createBootstrapRuntime = (dependencies) => {
       serverStartedAt,
       gracefulShutdown,
       getHealthSnapshot,
+      getServerPort,
+      getTunnelUrl,
       verboseRequestLogs,
       uiPassword,
       tunnelAuthController,
@@ -81,6 +83,8 @@ export const createBootstrapRuntime = (dependencies) => {
       gracefulShutdown,
       getHealthSnapshot,
       getServerId,
+      getServerPort,
+      getTunnelUrl,
       tunnelAuthController,
       uiAuthController,
     });