feat(extractors): expand catalog, smoke coverage, and sourcing docs

Adds Arc.dev, BC T-Net, Eluta, iCIMS tenants, QAJobsBoard, and SmartRecruiters
manifests with registry/settings/UI wiring; registers full extractor list in
smoke-extractors and documents supplementary board access paths. Aligns Careerjet
v4 with the url query parameter and fixes strict typing in QAJobsBoard.

Co-authored-by: Cursor <cursoragent@cursor.com>

extractors/careerjet/manifest.ts

@@ -8,8 +8,11 @@
  * Referer header and `user_ip` / `user_agent` query params. Register your
  * server's outbound IP(s) in the Careerjet publisher dashboard.
  *
- * Env: CAREERJET_AFFID (API key), CAREERJET_REFERER (job-search page URL),
- * CAREERJET_USER_IP (must match an allowlisted IP), optional CAREERJET_USER_AGENT.
+ * Publisher signup: careerjet.com/partners → register allowlisted server IP(s).
+ * Env: CAREERJET_AFFID (API key for Basic auth username), CAREERJET_REFERER (maps to
+ * Referer header and the API `url` query param — page where results would appear),
+ * CAREERJET_USER_IP (public egress IP allowlisted in dashboard; fraud-checked),
+ * optional CAREERJET_USER_AGENT. Missing user_ip / user_agent yields 403 per docs.
  */
 
 import type {
@@ -117,6 +120,7 @@ async function fetchPage(args: {
   url.searchParams.set("page_size", String(args.pageSize));
   url.searchParams.set("user_ip", args.userIp);
   url.searchParams.set("user_agent", args.userAgent);
+  url.searchParams.set("url", args.referer);
 
   const response = await fetch(url.toString(), {
     headers: {
@@ -213,11 +217,7 @@ export const manifest: ExtractorManifest = {
         let collected = 0;
         let page = 1;
         let totalPages = Number.POSITIVE_INFINITY;
-        while (
-          collected < maxJobsPerTerm &&
-          page <= totalPages &&
-          page <= 10
-        ) {
+        while (collected < maxJobsPerTerm && page <= totalPages && page <= 10) {
           if (context.shouldCancel?.()) break;
           const body = await fetchPage({
             apiKey,