Add content-level language filter, recheck command, expanded keywords

- isEnglishContent() fetches each job page and drops descriptions with ≥6 German or French indicator words; called for every new job in index.ts before writing to CSV
- New `bun recheck` command (recheck.ts) runs searches in raw mode, lists filtered-out jobs, and prints word-frequency suggestions for SOFTWARE_TITLE_RE
- Expanded KEYWORDS and SOFTWARE_TITLE_RE to cover ML/AI, system/applications engineer, director, informatics, and more title variants
- Added `raw` flag to fetchJobs() to bypass the software-role filter
- Add CLAUDE.md with project workflow docs; add CV files and city temp scripts

zurich-temp.ts

@@ -0,0 +1,38 @@
+#!/usr/bin/env bun
+import { KEYWORDS } from "./config.ts";
+import { fetchJobs, isEnglishContent } from "./fetch.ts";
+import type { SearchConfig } from "./config.ts";
+
+const searches: SearchConfig[] = [
+  { label: "Zürich", keywords: KEYWORDS, location: "Zurich, Switzerland", workType: ["onsite", "hybrid"], timePosted: "month" },
+];
+
+const seen = new Set<string>();
+const results: { id: string; title: string; company: string; search: string }[] = [];
+
+for (const config of searches) {
+  console.log(`\n[${config.label}]`);
+  const jobs = await fetchJobs(config);
+  for (const job of jobs) {
+    if (!seen.has(job.id)) {
+      seen.add(job.id);
+      results.push({ id: job.id, title: job.title, company: job.company, search: job.search });
+    }
+  }
+}
+
+console.log(`\n── ${results.length} jobs after title filter — checking content language ──\n`);
+
+const english: typeof results = [];
+for (const job of results) {
+  process.stdout.write(`  ${job.company} — ${job.title} … `);
+  const ok = await isEnglishContent(job.id);
+  console.log(ok ? "en" : "dropped");
+  if (ok) english.push(job);
+}
+
+console.log(`\n── ${english.length} English jobs in Zürich ──\n`);
+for (const [i, j] of english.entries()) {
+  console.log(`  ${i + 1}. [${j.search}] ${j.title} — ${j.company}`);
+  console.log(`     https://www.linkedin.com/jobs/view/${j.id}/`);
+}