Add screenshots to the quarantine self-service article

Four screenshots of the actual PMG quarantine portal (login with
Request Quarantine Link, the request dialog, the held-mail list, and
the message-selected action toolbar), captured via a new
capture-quarantine.ts following the existing capture-*.ts pattern
(1440x900, deviceScaleFactor 2, viewport-only).

Redacted: real server hostname, the test mailbox address, and the
synthetic test-message content are all swapped for believable generic
customer-facing examples before each shot.

Restructured the article's two near-duplicate step lists ("Check your
quarantine" / "Get in without waiting") into one flow now that the
screenshots show it's genuinely a single screen, not two paths.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VXgBxaVABantBF8twz4LpU

src/content/docs/email/release-quarantined-email.mdx

@@ -8,50 +8,46 @@ sidebar:
 import { Steps, Aside } from '@astrojs/starlight/components';
 import Support from '~/content/partials/support-link.mdx';
 
-Mail our filters flag as likely spam isn't delivered to your inbox — it's held in **quarantine** instead, where you can review it, release anything that's actually wanted, and always allow a sender in future.
-
-<Aside type="tip">
-  **Need something released right now?** You don't have to wait for the daily notice — see [Get in without waiting](#get-in-without-waiting) below.
-</Aside>
+Mail our filters flag as likely spam isn't delivered to your inbox — it's held in **quarantine** instead, where you can review it, release anything that's actually wanted, and always allow a sender in future. You don't have to wait for the daily notice to do this — see below.
 
 ## Check your quarantine
 
+You'll normally get a **daily summary email** listing anything held for you — but the steps below work any time, not just after that email arrives. There's no separate password to remember; a link emailed to your own address is what signs you in.
+
 <Steps>
 
-1. Go to your mail filtering portal at `https://pmg01.cloud-hosting.io:8006/quarantine`.
+1. Go to your mail filtering portal at `https://pmg01.cloud-hosting.io:8006/quarantine`. Choose **Request Quarantine Link**.
 
-2. Enter the email address you want to check, and choose to receive a sign-in link.
+   ![The mail filtering portal's login screen, with Request Quarantine Link next to Login](~/assets/screenshots/email/email-quarantine-login.png)
 
-3. Open the email that arrives and follow the link — it signs you in without a separate password.
+2. Enter the email address you want to check.
 
-4. Review what's listed. For anything you want, choose **Deliver** to send it to your inbox as normal.
+   ![The Request Quarantine Link dialog with an email address entered](~/assets/screenshots/email/email-quarantine-request.png)
+
+3. Open the email that arrives — usually within moments — and follow the link inside it.
+
+4. Review what's listed for your address.
+
+   ![The Spam Quarantine list showing a held message with its sender, subject, and spam score](~/assets/screenshots/email/email-quarantine-list.png)
+
+5. Select a message to see its content and the Whitelist / Blacklist / Deliver / Delete options, then choose **Deliver** to send it to your inbox as normal.
+
+   ![A held message selected, showing its content and the Whitelist, Blacklist, Deliver, and Delete buttons](~/assets/screenshots/email/email-quarantine-actions.png)
 
 </Steps>
 
+<Aside type="tip">
+  **Need something released right now?** This works any time of day, not just once daily — request a new link as often as you need one. No need to wait for the daily summary email.
+</Aside>
+
 ## Always allow a sender
 
-If mail from someone keeps getting caught and you know it's legitimate, allow their address (or their whole domain) from the same screen — choose **Whitelist** on a held message, or add the address directly from the quarantine portal. Future mail from that sender skips spam filtering for **your address specifically** — it doesn't change anything for the rest of your organization.
+If mail from someone keeps getting caught and you know it's legitimate, allow their address (or their whole domain) from the same screen — choose **Whitelist** on a held message (shown in the screenshot above), or add the address directly from the quarantine portal. Future mail from that sender skips spam filtering for **your address specifically** — it doesn't change anything for the rest of your organization.
 
 <Aside type="caution">
   Only allow senders you actually recognize. Allowing an address skips spam checks for it entirely, so it's worth being deliberate rather than allowing everything that shows up.
 </Aside>
 
-## Get in without waiting
-
-You'll normally get a **daily summary email** listing anything held for you, with links to review and release it from there. But if something time-sensitive is stuck in quarantine, you don't need to wait for that email:
-
-<Steps>
-
-1. Go to `https://pmg01.cloud-hosting.io:8006/quarantine` any time.
-
-2. Enter your email address and request a sign-in link — a fresh one arrives within moments.
-
-3. Follow the link and release the message immediately.
-
-</Steps>
-
-This works any time of day and isn't limited to once daily — request a new link as often as you need one.
-
 ## Common problems
 
 **The sign-in link email hasn't arrived.** Check your spam folder — slightly ironic for a spam-filtering tool, but it happens. If it's still missing after a few minutes, contact us.