Make -ApiVersion prefixing idempotent in Invoke-ConfluenceRestMethod

When -ApiVersion was combined with an -ApiEndpoint that already carries the /wiki/... root, the version prefix was prepended again, producing a doubled path (e.g. /wiki/api/v2/wiki/api/v2/spaces). Skip prefixing for endpoints that are already absolute (full URL or /wiki/*) so both documented usage styles - a relative path with -ApiVersion, or a full /wiki path without it - work safely (review thread on Invoke-ConfluenceRestMethod L80).

Author: MariusStorhaug

src/functions/public/API/Invoke-ConfluenceRestMethod.ps1

@@ -75,7 +75,10 @@ function Invoke-ConfluenceRestMethod {
     }
 
     # Resolve a relative endpoint against the internal v1/v2 map when a version is given.
-    if ($ApiVersion -and $ApiEndpoint -notmatch '^https?://') {
+    # An endpoint that is already absolute - a full URL, or one that already carries the
+    # /wiki/... root - is used as-is, so combining -ApiVersion with an already-versioned path
+    # does not double the prefix (e.g. /wiki/api/v2/wiki/api/v2/spaces).
+    if ($ApiVersion -and $ApiEndpoint -notmatch '^https?://' -and $ApiEndpoint -notlike '/wiki/*') {
         $ApiEndpoint = '{0}/{1}' -f $script:Confluence.ApiPaths[$ApiVersion], $ApiEndpoint.TrimStart('/')
     }