Feature/drupalwiki collector (#3693)

* Implement DrupalWiki collector

* Add attachment downloading and processing functionality (#3)

* linting

* Linting
Add citation image
small refactors
add URL for citation identifier

---------

Co-authored-by: em <eugen.mayer@kontextwork.de>
Co-authored-by: rexjohannes <53578137+rexjohannes@users.noreply.github.com>
Co-authored-by: Eugen Mayer <136934+EugenMayer@users.noreply.github.com>

server/models/documentSyncQueue.js

@@ -10,7 +10,14 @@ const { Telemetry } = require("./telemetry");
 const DocumentSyncQueue = {
   featureKey: "experimental_live_file_sync",
   // update the validFileTypes and .canWatch properties when adding elements here.
-  validFileTypes: ["link", "youtube", "confluence", "github", "gitlab"],
+  validFileTypes: [
+    "link",
+    "youtube",
+    "confluence",
+    "github",
+    "gitlab",
+    "drupalwiki",
+  ],
   defaultStaleAfter: 604800000,
   maxRepeatFailures: 5, // How many times a run can fail in a row before pruning.
   writable: [],
@@ -52,6 +59,7 @@ const DocumentSyncQueue = {
     if (chunkSource.startsWith("confluence://")) return true; // If is a confluence document link
     if (chunkSource.startsWith("github://")) return true; // If is a GitHub file reference
     if (chunkSource.startsWith("gitlab://")) return true; // If is a GitLab file reference
+    if (chunkSource.startsWith("drupalwiki://")) return true; // If is a DrupalWiki document link
     return false;
   },