Inspector: Support /open-debugger specifying target param (#45138)

Summary:
Pull Request resolved: #45138

Add a new `/open-debugger` endpoint format that allows specifying `target` - the proxy-unique target `id`. This is logically equivalent to specifying both device and page.

Changelog:
[General][Added]: Inspector: Support `/open-debugger` specifying `target` param

Reviewed By: hoxyq

Differential Revision: D58950622

fbshipit-source-id: 9665f8a24ba2bb0561cc3c693dfb84bfffdeb4a4

packages/dev-middleware/src/middleware/openDebuggerMiddleware.js

@@ -59,7 +59,14 @@ export default function openDebuggerMiddleware({
         appId,
         device,
         launchId,
-      }: {appId?: string, device?: string, launchId?: string, ...} = query;
+        target: targetId,
+      }: {
+        appId?: string,
+        device?: string,
+        launchId?: string,
+        target?: string,
+        ...
+      } = query;
 
       const targets = inspectorProxy.getPageDescriptions().filter(
         // Only use targets with better reloading support
@@ -73,13 +80,18 @@ export default function openDebuggerMiddleware({
       const launchType: 'launch' | 'redirect' =
         req.method === 'POST' ? 'launch' : 'redirect';
 
-      if (typeof appId === 'string' || typeof device === 'string') {
+      if (
+        typeof targetId === 'string' ||
+        typeof appId === 'string' ||
+        typeof device === 'string'
+      ) {
         logger?.info(
           (launchType === 'launch' ? 'Launching' : 'Redirecting to') +
             ' JS debugger (experimental)...',
         );
         target = targets.find(
           _target =>
+            (targetId == null || _target.id === targetId) &&
             (appId == null || _target.description === appId) &&
             (device == null || _target.reactNative.logicalDeviceId === device),
         );