fuel-db: customer on every row, place and holder for site, licence tables

Draft migrations rewritten in place (PD-16, PD-18), with 0004 for the licence
tables (PD-20) and rule tests in fuel-db/tests. Dashboards' column list
regenerated; coverage_detail selects operator_uid.

Checks: tests/run.sh 106 of 106; 18 views, 686 rows, 0 differences against a
reference from the same corpus. Codex's fixes to its inspection are not
re-inspected.

Bands: persistence, Superset. Rules: 6, 8.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

petrolyst-insights/dashboards/atoma/build_bundle.py

@@ -109,7 +109,7 @@ CALCULATED = {
 # opening visit's delivery is included and the closing visit's excluded.
 VIRTUAL = {
     "coverage_detail": ("v_coverage", [("lane_name", "character varying(60)"), ("amount", "character varying(120)")], """\
-SELECT c.site_uid, c.site_code, c.site_name, c.site_label, c.lane, c.status,
+SELECT c.site_uid, c.site_code, c.site_name, c.site_label, c.operator_uid, c.lane, c.status,
        c.start_on, c.end_on, c.start_ts, c.end_ts,
        regexp_replace(c.lane, '^[0-9]+ ', '') AS lane_name,
        CASE WHEN c.lane = '1 Stock intervals' THEN
@@ -166,6 +166,7 @@ METRICS = {
 
 LABELS = {
     "site_code": "Code", "site_name": "Site name", "site_label": "Site", "site_uid": "Site uid",
+    "operator_uid": "Customer",
     "pilot_status": "Pilot status", "baseline_status_label": "Baseline status",
     "baseline_status": "Baseline status code", "baseline_validity_note": "Validity note",
     "lph_estimate": "L/h", "lph_method": "L/h method", "lph_window_start": "L/h window start",