fix: group telegram digest by posting's real location, not search label

fetch.ts already parses each job card's own location, but index.ts
discarded it and stored only the search-area label in the CSV, so
daily.ts's telegram grouping used the query that found a job instead
of where it actually is (e.g. a Bern search surfacing a Lausanne job).
Now the location is written to a new CSV column and used for grouping,
with a one-time migration for existing rows.

daily.ts

@@ -11,7 +11,7 @@ const SENT = "./results/sent.txt"; // links already pushed — never resend
 const dry = process.argv.includes("--dry-run");
 const resend = process.argv.includes("--resend");
 
-type Row = { fetched: string; posted: string; search: string; title: string; company: string; link: string; source: string };
+type Row = { fetched: string; posted: string; search: string; title: string; company: string; link: string; source: string; location: string };
 
 function parse(text: string): Row[] {
   return text
@@ -20,7 +20,7 @@ function parse(text: string): Row[] {
     .filter(Boolean)
     .map((l) => {
       const c = l.replace(/^"|"$/g, "").split('","');
-      return { fetched: c[0], posted: c[1], search: c[2], title: c[3], company: c[4], link: c[5], source: c[6] };
+      return { fetched: c[0], posted: c[1], search: c[2], title: c[3], company: c[4], link: c[5], source: c[6], location: c[7] ?? "" };
     });
 }
 
@@ -60,13 +60,20 @@ if (!matched.length) {
   process.exit(0);
 }
 
-// Group by area so the message scans quickly on a phone.
+// Group by area so the message scans quickly on a phone. Match against the
+// posting's own location first — `search` is just the query that found it,
+// and recruiters/multi-site companies often post under a different area than
+// the job actually sits in (e.g. a "Bern" LinkedIn sweep surfacing a Lausanne
+// posting). Fall back to `search` only when no location was captured (rows
+// written before the location column existed).
 const area = (r: Row) => {
+  const loc = r.location.toLowerCase();
   const s = r.search.toLowerCase();
-  if (s.includes("remote")) return "🌍 Remote";
-  if (s.includes("basel")) return "🟢 Basel";
-  if (s.includes("zürich") || s.includes("zurich")) return "🔵 Zürich";
-  if (s.includes("bern")) return "🟣 Bern";
+  const text = loc || s;
+  if (s.includes("remote") || loc.includes("remote")) return "🌍 Remote";
+  if (text.includes("basel")) return "🟢 Basel";
+  if (text.includes("zürich") || text.includes("zurich")) return "🔵 Zürich";
+  if (text.includes("bern")) return "🟣 Bern";
   return "⚪️ Other";
 };
 const order = ["🟢 Basel", "🌍 Remote", "🔵 Zürich", "🟣 Bern", "⚪️ Other"];