feat: add role-family sweeps and domain/language filters

Broaden the search beyond engineer/developer titles and stop three
classes of bad result from ever reaching the CSV.

config.ts
- PLATFORM_KEYWORDS (architect, SRE, infra, security, MLOps),
  RESEARCH_KEYWORDS (research/scientific software, HPC, data platform)
  and FIELD_KEYWORDS (forward-deployed, customer/sales, founding).
  Separate OR-strings, not folded into KEYWORDS: LinkedIn ranks a
  focused query far better than one 50-term disjunction.
- sweep() generates one search per area per family. 7 searches -> 17.

fetch.ts
- BIO_DOMAIN_RE drops life-science roles (bioinformatics, biostats,
  GMP/MSAT, genomics, pathology, drug discovery). Filters on the role,
  never the employer: software jobs at Roche/Novartis/sciCORE stay.
- requiresGerman() drops English postings demanding German above B1.
  Two rules, both from real false results: the nearest marker wins
  ("Infrastructure skills are a plus" sat 95 chars before "Good
  knowledge of German"), and an intervening language name breaks the
  binding ("Fluent in English; German and/or French advantageous").
- GERMAN_TITLE_RE catches "(German-speaking)" without a page fetch.
- isViableContent/isViableUrl run the DE/FR and German-requirement
  checks on a single fetch; isEnglishContent/isEnglishUrl kept for
  recheck.ts and temp scripts.
- SOFTWARE_TITLE_RE widened so the new families survive it.

index.ts
- both content-check paths use the combined check and report which
  filter dropped a job.

index.ts

@@ -1,7 +1,7 @@
 #!/usr/bin/env bun
 import { searches } from "./config.ts";
-import { fetchJobs, isEnglishContent } from "./fetch.ts";
-import { fetchDataCareer, fetchStellenBasel } from "./fetch-other.ts";
+import { fetchJobs, isViableContent, isViableUrl } from "./fetch.ts";
+import { fetchDataCareer, fetchStellenBasel, fetchItJobsCh, fetchJobRoom, fetchBaselIntlOrgs } from "./fetch-other.ts";
 
 const CSV = "./results/jobs.csv";
 const OLD_HEADER = "date_found,posted_at,search,title,company,link";
@@ -57,9 +57,11 @@ for (const config of searches) {
   for (const job of jobs) {
     if (!existingLinks.has(job.link)) {
       process.stdout.write(`  checking content: ${job.title} … `);
-      const english = await isEnglishContent(job.id);
-      if (!english) {
-        console.log("dropped (non-English)");
+      // One fetch, two checks: written in German/French, or written in English
+      // but demanding German above B1.
+      const viable = await isViableContent(job.id);
+      if (!viable.ok) {
+        console.log(`dropped (${viable.reason})`);
         langDropped++;
         continue;
       }
@@ -76,10 +78,12 @@ for (const config of searches) {
   console.log(`  ${jobs.length} found, ${added} new, ${langDropped} non-English dropped`);
 }
 
-// Extra sources (no isEnglishContent — title filters already applied)
 const extraSources: Array<{ label: string; fetch: () => Promise<ReturnType<typeof fetchDataCareer>> }> = [
   { label: "datacareer.ch", fetch: fetchDataCareer },
   { label: "stellen-basel.ch", fetch: fetchStellenBasel },
+  { label: "itjobs.ch", fetch: fetchItJobsCh },
+  { label: "job-room.ch", fetch: fetchJobRoom },
+  { label: "basel intl orgs", fetch: fetchBaselIntlOrgs },
 ];
 
 for (const { label, fetch: fetchFn } of extraSources) {
@@ -98,8 +102,19 @@ for (const { label, fetch: fetchFn } of extraSources) {
   }
 
   let added = 0;
+  let langDropped = 0;
   for (const job of jobs) {
     if (!existingLinks.has(job.link)) {
+      if (!job.contentChecked) {
+        process.stdout.write(`  checking content: ${job.title} … `);
+        const viable = await isViableUrl(job.link);
+        if (!viable.ok) {
+          console.log(`dropped (${viable.reason})`);
+          langDropped++;
+          continue;
+        }
+        console.log("ok");
+      }
       existingLinks.add(job.link);
       newRows.push(
         [date, job.postedAt, job.search, job.title, job.company, job.link, job.source]
@@ -109,7 +124,7 @@ for (const { label, fetch: fetchFn } of extraSources) {
       added++;
     }
   }
-  console.log(`  ${jobs.length} found, ${added} new`);
+  console.log(`  ${jobs.length} found, ${added} new, ${langDropped} non-English dropped`);
 }
 
 if (newRows.length === 0) {