Replace removed guest API example and pin 0.8.0 release link

[Copilot]

Two stale references in the docs: a guest API endpoint that no longer exists (removed in 0.8.0), and a release link that always resolves to the latest release instead of 0.8.0.

Changes

• javascript.mdoc — Replace the system/version guest API example with currency/get_pairs. system/version was removed under the 0.8.0 Guest API Lockdown, so the old snippet fails on any current installation.

  // Before (broken on 0.8.0+)
  API.guest.get("system/version", {}, ...);
  
  // After
  API.guest.get("currency/get_pairs", {}, ...);

• changelog.mdoc — Change the 0.8.0 release notes link from .../releases/latest to .../releases/tag/0.8.0 so it permanently points to that release rather than drifting to whatever is newest.

Original prompt

Please apply the following diffs and create a pull request.
Once the PR is ready, give it a title based on the messages of the fixes being applied.

[{"message":"The `system/version` guest API endpoint was removed in 0.8.0 (documented in `0-7-to-0-8.mdoc` under \"Guest API Lockdown\"). This example will fail on any 0.8.0+ installation. Replace this example with a guest endpoint that still exists, such as `guest/currency_get_pairs` or another currently available public endpoint.","fixFiles":[{"filePath":"src/content/docs/extensions-and-development/javascript.mdoc","diff":"diff --git a/src/content/docs/extensions-and-development/javascript.mdoc b/src/content/docs/extensions-and-development/javascript.mdoc\n--- a/src/content/docs/extensions-and-development/javascript.mdoc\n+++ b/src/content/docs/extensions-and-development/javascript.mdoc\n@@ -67,14 +67,14 @@\n \n ## Examples\n \n-### Get System Version (Guest)\n+### Get Currency Pairs (Guest)\n \n ```javascript\n API.guest.get(\n-  \"system/version\",\n+  \"currency/get_pairs\",\n   {},\n   function(response) {\n-    console.log(\"Version:\", response);\n+    console.log(\"Currency pairs:\", response);\n   },\n   function(error) {\n     console.error(\"Error:\", error);\n"}]},{"message":"This link points to `/releases/latest`, which will always resolve to the newest release rather than the 0.8.0 release notes specifically. As newer versions are released, this link will no longer point to the 0.8.0 changelog. Change it to the stable tag URL, e.g. `https://github.com/FOSSBilling/FOSSBilling/releases/tag/0.8.0`.","fixFiles":[{"filePath":"src/content/docs/maintenance/changelog.mdoc","diff":"diff --git a/src/content/docs/maintenance/changelog.mdoc b/src/content/docs/maintenance/changelog.mdoc\n--- a/src/content/docs/maintenance/changelog.mdoc\n+++ b/src/content/docs/maintenance/changelog.mdoc\n@@ -35,7 +35,7 @@\n | **Patcher** | Extended through patch 64 (was 43) |\n | **Uploads & Public Assets** | Uploads moved from `/uploads` to `/data/uploads`; gateway and default branding assets moved to `/public` |\n \n-[View the full 0.8.0 release notes](https://github.com/FOSSBilling/FOSSBilling/releases/latest) for the complete list of changes.\n+[View the full 0.8.0 release notes](https://github.com/FOSSBilling/FOSSBilling/releases/tag/0.8.0) for the complete list of changes.\n \n ## Breaking Changes\n \n"}]}]

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Status	Name	Latest Commit	Preview URL	Updated (UTC)
✅ Deployment successful! View logs	docs	9d52f8f	Commit Preview URL Branch Preview URL	May 30 2026, 07:43 AM

[Copilot]

Pull request overview

Updates documentation to remove stale references introduced by the 0.8.0 guest API lockdown and to make the 0.8.0 release notes link stable over time.

Changes:

• Replaced the removed system/version guest API example with a currency/get_pairs guest API example in the JavaScript wrapper docs.
• Updated the 0.8.0 release notes link to point to the fixed releases/tag/0.8.0 URL instead of releases/latest.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/content/docs/extensions-and-development/javascript.mdoc	Updates the guest API example to use a currently available endpoint (currency/get_pairs).
src/content/docs/maintenance/changelog.mdoc	Pins the 0.8.0 release notes link to the 0.8.0 tag to avoid link drift.

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