fix: remove npx from build script

Use `tailwindcss` directly in the `build:css` script instead of `npx tailwindcss`. This ensures the local binary (installed in `node_modules/.bin`) is used, avoiding potential `npx` path resolution failures or network requests in restricted CI environments (like Netlify).

Co-authored-by: PR0M3TH3AN <[email protected]>

tests/visual/overlay-layers.spec.ts

@@ -11,6 +11,11 @@ declare global {
 
 test.describe("overlay layering tokens", () => {
   async function dismissDisclaimerModal(page: Page) {
+    const modal = page.locator("#disclaimerModal");
+    if ((await modal.count()) === 0) {
+      return;
+    }
+
     await page.evaluate(() => {
       try {
         window.localStorage?.setItem("hasSeenDisclaimer", "true");
@@ -27,16 +32,11 @@ test.describe("overlay layering tokens", () => {
       document.body?.classList.remove("modal-open");
     });
 
-    // Check if the modal exists in the DOM before waiting for it to be hidden.
-    // If it doesn't exist, we've already set the localStorage flag so it shouldn't open.
-    const modal = page.locator("#disclaimerModal");
-    if ((await modal.count()) > 0) {
-      await page.waitForFunction(() =>
-        Array.from(document.querySelectorAll("#disclaimerModal")).every(
-          (modalElement) => modalElement.classList.contains("hidden")
-        )
-      );
-    }
+    await page.waitForFunction(() =>
+      Array.from(
+        document.querySelectorAll("#disclaimerModal")
+      ).every((modalElement) => modalElement.classList.contains("hidden"))
+    );
   }
 
   test("mobile sidebar shares desktop rail behavior", async ({ page }) => {