test codegen on components projects (#29433)

run codegen wherever we see a `convex/_generated` folder, which indicates an app that can be codegened.

in particular, since we'll be iterating a lot on these and should make sure the codegen is correct, we should run codegen on the `components-poc` project and all example apps in the `npm-packages/components` directory. Since the example apps will be using the components directly instead of their packaged forms, we can use `just regenerate-codegen` to keep the `component/_generated` folders up-to-date.

to enable the test, fix a small issue from #29394 where we started running codegen on packaged components.

GitOrigin-RevId: d5f18125c69f551013b83a7d623e140872edf3ff

src/cli/lib/codegen.ts

@@ -161,11 +161,13 @@ export async function doInitialComponentCodegen(
   const isPublishedPackage =
     componentDirectory.definitionPath.endsWith(".js") &&
     !componentDirectory.isRoot;
-  if (isPublishedPackage && opts?.verbose) {
-    logMessage(
-      ctx,
-      `skipping initial codegen for installed package ${componentDirectory.path}`,
-    );
+  if (isPublishedPackage) {
+    if (opts?.verbose) {
+      logMessage(
+        ctx,
+        `skipping initial codegen for installed package ${componentDirectory.path}`,
+      );
+    }
     return;
   }