FMG full-JSON ingest maps regiment naval flag into total_men (r.n vs r.a)

[barrulus]

Symptom

Regiments layer badges show 0/1 for every regiment; FMG's own overview shows totals like 1886/1875. Digia: all 81 regiments have total_men in {0,1}.

Root cause

server/services/maps/fmg-full-json/ingesters/regiments.js (insert params, line ~26):

r.n ?? null, r.a ?? null,   // → (total_men, attack_value)

In FMG's military schema n is the naval flag (0/1) and a is the army total. So total_men gets the flag and attack_value gets the real total.

Fix

• Ingester: total_men = r.a; attack_value has no FMG source — write NULL (or drop the column).
• Backfill for already-imported worlds:

UPDATE maps_regiments SET total_men = attack_value::integer, attack_value = NULL
 WHERE attack_value IS NOT NULL;

• components/layers/regiments.ts reads total_men for its badge — no frontend change needed once data is right.

Found browser-testing lazy-world-tiles 2026-08-10 (world Digia); pre-existing Plan B ingest bug, unrelated to that branch.