fix(rank): rename the location verdict field to location_verdict

"location" meant a place in scraper output and a PASS/FAIL/FLAG verdict
in /rank's persistence - one key, two meanings, in the same store, with
ranking able to overwrite the commute-filter place with "PASS". The
verdict now lives in location_verdict; legacy entries are read
compatibly and migrated on re-write. Also completes the seen_jobs schema
enumeration (F27 Part A): the do-not-drop instruction now names
location_verdict/language_gate/language_note. Review finding F27
(2026-08-19), decision approved by Mads.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.claude/commands/rank.md

@@ -49,7 +49,7 @@ Each agent returns a JSON array, one object per job:
   "key": "<the job's key in seen_jobs.json>",
   "status": "scored" | "expired",
   "scores": { "technical": 0-100, "experience": 0-100, "behavioral": 0-100, "career": 0-100 },
-  "location": "PASS" | "FAIL" | "FLAG",
+  "location_verdict": "PASS" | "FAIL" | "FLAG",
   "language_gate": "PASS" | "FAIL" | "FLAG",
   "language_note": "<posting requirement + declared level, only when FLAG or FAIL>",
   "deadline": "YYYY-MM-DD" | null,
@@ -84,7 +84,7 @@ Sort by overall score (descending), urgency as tiebreaker.
 
 Update `job_scraper/seen_jobs.json` in place - these fields are additive to the scraper's schema:
 
-- Ranked jobs: set `"status": "ranked"` and add `"rank_score": <overall>`, `"rank_verdict": "<band>"`, `"rank_date": "YYYY-MM-DD"`, `"location": "PASS"/"FAIL"/"FLAG"`, `"language_gate": "PASS"/"FAIL"/"FLAG"`, `"language_note"` (omit or `null` when `language_gate` is `PASS`), `"deadline": "YYYY-MM-DD" | null` from the same Step 2 JSON (replace the stored value when the agent returned a different one - a fresh fetch is the freshest source; leave it alone when the agent returned `null`, absence is not a correction - a fetch that degraded to a listing page returns no deadline, and taking that as "the posting dropped its deadline" would erase a real date and, because rule 6 leaves an entry with no stored `deadline` alone, quietly make that job immortal to the sweep), plus `"strengths": [...]` and `"gaps": [...]` copied from the scoring agent's Step 2 JSON for that job. These veto fields are as important to persist as the score itself - without them, nothing later (a re-read of `seen_jobs.json`, a debugging session, the user asking "why was this excluded") can recover why a job did or didn't make the shortlist.
+- Ranked jobs: set `"status": "ranked"` and add `"rank_score": <overall>`, `"rank_verdict": "<band>"`, `"rank_date": "YYYY-MM-DD"`, `"location_verdict": "PASS"/"FAIL"/"FLAG"` (never the bare `location` key - that is the scraper's place field, e.g. "Aarhus, Denmark", and overwriting it with a verdict destroys the commute-filter data; an entry ranked before this rename may carry a legacy PASS/FAIL/FLAG string in `location` - read that as the verdict when `location_verdict` is absent, and move it to `location_verdict` when re-writing the entry), `"language_gate": "PASS"/"FAIL"/"FLAG"`, `"language_note"` (omit or `null` when `language_gate` is `PASS`), `"deadline": "YYYY-MM-DD" | null` from the same Step 2 JSON (replace the stored value when the agent returned a different one - a fresh fetch is the freshest source; leave it alone when the agent returned `null`, absence is not a correction - a fetch that degraded to a listing page returns no deadline, and taking that as "the posting dropped its deadline" would erase a real date and, because rule 6 leaves an entry with no stored `deadline` alone, quietly make that job immortal to the sweep), plus `"strengths": [...]` and `"gaps": [...]` copied from the scoring agent's Step 2 JSON for that job. These veto fields are as important to persist as the score itself - without them, nothing later (a re-read of `seen_jobs.json`, a debugging session, the user asking "why was this excluded") can recover why a job did or didn't make the shortlist.
 - Dead or past-deadline jobs: set `"status": "expired"`
 - Entries retired by Step 3's rule 6 sweep: set `"status": "expired"` for those too, and leave every other field on them untouched. The sweep reasons over entries this run never scored, so without this line its conclusion would live only in the report and the same expiry would be re-derived from the same stored date on every future run.