Merge remote-tracking branch 'origin/master'

svc/db/migrations/2026-05-21_first_group_mail_mappings.sql

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+-- Product First Group mail mappings (Postgres)
+-- Two independent mapping tables:
+-- 1) Costing mails: triggered when a costing is created/updated
+-- 2) Pricing mails: triggered when pricing is created/updated
+
+CREATE TABLE IF NOT EXISTS mk_costing_first_group_mail (
+  urun_ilk_grubu TEXT NOT NULL,
+  mail_id        BIGINT NOT NULL REFERENCES mk_mail(id) ON DELETE CASCADE,
+  PRIMARY KEY (urun_ilk_grubu, mail_id)
+);
+
+CREATE TABLE IF NOT EXISTS mk_pricing_first_group_mail (
+  urun_ilk_grubu TEXT NOT NULL,
+  mail_id        BIGINT NOT NULL REFERENCES mk_mail(id) ON DELETE CASCADE,
+  PRIMARY KEY (urun_ilk_grubu, mail_id)
+);
+