Say Remove for displays, and make the default accent purple (#210050)

Administrators now remove a display: the card's Remove, "Remove display?",
and "Display removed". The platform still revokes the device's credential;
the endpoint, fields, and security history keep revoke/revoked (ADR 0065).

The default accent is a deep purple anchored on #210050, set in the shared
design tokens only (ADR 0066, superseding ADR 0060's teal in part). The
anchor is the light primary action with white on it; the light accent text,
focus ring, and selection, and the dark theme's lavender accent, are
variants on its hue chosen for contrast. The teal-tinted neutrals move to a
faint violet-grey at the same lightness, so every contrast pairing holds.
The contrast test gains six pairings the accent depends on, and pins the
anchor.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

scripts/lib/deploy-smoke-browser.mjs

@@ -755,24 +755,36 @@ await waitFor(`!${selector("add-display-dialog")}`, "the Add display dialog clos
       );
     }
 
-    // Revoked, it leaves the normal list at once, and its screen returns to a pairing code.
+    // Removed (its credential revoked), it leaves the normal list at once, and its screen returns
+    // to a pairing code. The interface says "remove" throughout; only the platform says "revoke".
     if (cardId !== "") {
-      await evaluate(`${selector(cardId.replace("device-", "device-revoke-"))}.click()`);
-      await waitFor(selector("device-revoke-confirm"), "the revoke confirmation");
+      const removeId = cardId.replace("device-", "device-revoke-");
+      check(
+        (await evaluate(`${selector(removeId)}?.textContent`)) === "Remove",
+        "a paired display's card offers Remove",
+      );
+      await evaluate(`${selector(removeId)}.click()`);
+      await waitFor(selector("device-revoke-confirm"), "the remove confirmation");
+      check(
+        await evaluate(
+          `(() => { const d = document.querySelector('[role="dialog"]'); return d !== null && d.textContent.includes("Remove display?") && !/revok/i.test(d.textContent); })()`,
+        ),
+        "the confirmation asks Remove display?, never Revoke",
+      );
       await evaluate(`${selector("device-revoke-confirm")}.click()`);
       check(
         await waitFor(
-          `!${selector(cardId)} && ${selector("device-revoke-success")}`,
-          "the revoked display gone from the list",
+          `!${selector(cardId)} && ${selector("device-outcome")}?.textContent.includes("Display removed") && !/revok/i.test(document.querySelector("main")?.textContent ?? document.body.textContent)`,
+          "the removed display gone from the list",
         ),
-        "a revoked display leaves Paired displays at once, without a reload",
+        "a removed display leaves Paired displays at once, without a reload, and says Display removed",
       );
       check(
         await kioskWaitFor(
           `/^[0-9]{6}$/.test(${selector("display-pairing-code")}?.textContent ?? "")`,
           75_000,
         ),
-        "the revoked screen returns to a pairing code on its own",
+        "the removed screen returns to a pairing code on its own",
       );
     }
   }