fix: stop letting unreadable or truncated descriptions slip past the German filter

isViableContent/isViableUrl defaulted to keep a job when its description
couldn't be fetched at all -- that's what let a fully-German HRM
Systems/Consult & Pepper posting ("In Deutsch bist du verhandlungssicher")
through on 2026-09-10. They now report retry:true instead, and index.ts
leaves the job out of the CSV so a fresh fetch judges it next run rather
than defaulting to keep.

job-room.ch's search API also returns a different keyword-anchored teaser
per hit for the same ad, and only the last one was kept -- a genuinely
German posting could slip through whenever the last keyword's teaser
happened to read as English. Every teaser variant is now collected and
checked together.

fetch-other.ts

@@ -291,6 +291,16 @@ function stripTracking(url: string): string {
 
 export async function fetchJobRoom(): Promise<Job[]> {
   const ads = new Map<string, JobRoomAd>();
+  // The search API returns a short keyword-anchored teaser per hit, not the
+  // full posting — the same ad re-appears across keyword sweeps with a
+  // different teaser each time, and `ads.set()` above only keeps the latest.
+  // A genuinely German ad (Consult & Pepper's recurring "Senior Fullstack
+  // Software Engineer" — full text: "In Deutsch bist du verhandlungssicher")
+  // slipped through repeatedly because whichever keyword ran last happened to
+  // anchor on an English-reading fragment of it. Collecting every variant and
+  // checking them together means one clean-looking teaser can no longer
+  // override another teaser that actually shows the German.
+  const descVariants = new Map<string, Set<string>>();
 
   for (const keyword of JOBROOM_KEYWORDS) {
     process.stdout.write(`  ${keyword} … `);
@@ -313,7 +323,11 @@ export async function fetchJobRoom(): Promise<Job[]> {
 
       const hits = (await res.json()) as Array<{ jobAdvertisement?: JobRoomAd }>;
       for (const h of hits) {
-        if (h.jobAdvertisement?.id) ads.set(h.jobAdvertisement.id, h.jobAdvertisement);
+        const id = h.jobAdvertisement?.id;
+        if (!id) continue;
+        ads.set(id, h.jobAdvertisement!);
+        const d = h.jobAdvertisement!.jobContent?.jobDescriptions?.[0]?.description;
+        if (d) (descVariants.get(id) ?? descVariants.set(id, new Set()).get(id)!).add(d);
       }
       total += hits.length;
       if (hits.length < 100) break;
@@ -341,8 +355,11 @@ export async function fetchJobRoom(): Promise<Job[]> {
 
     // A handful of ads ship without a description. isViableDescription passes
     // those through by design, so leave contentChecked unset and let index.ts
-    // fall back to fetching the page.
-    const body = desc.description ?? "";
+    // fall back to fetching the page. When we do have variants, join every
+    // one seen across keyword sweeps rather than just the last teaser stored
+    // on `ad` (see comment above) — more text only adds detection signal, it
+    // never removes any.
+    const body = [...(descVariants.get(ad.id) ?? [])].join(" \n ") || desc.description || "";
     const hasBody = body.trim().length > 40;
     if (hasBody && !isViableDescription(body).ok) { langDropped++; continue; }