feat(tahesab): net sales by factor, group, and commission

Report weight after returns for the selected period, with parent customer groups and separate silver and investment commission.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/prisma/migrations/20261026120000_sales_report_factors/migration.sql

@@ -0,0 +1,14 @@
+ALTER TABLE "CustomerGroup" ADD COLUMN IF NOT EXISTS "parentId" TEXT;
+CREATE INDEX IF NOT EXISTS "CustomerGroup_parentId_idx" ON "CustomerGroup"("parentId");
+DO $$ BEGIN
+  ALTER TABLE "CustomerGroup"
+    ADD CONSTRAINT "CustomerGroup_parentId_fkey"
+    FOREIGN KEY ("parentId") REFERENCES "CustomerGroup"("id")
+    ON DELETE SET NULL ON UPDATE CASCADE;
+EXCEPTION
+  WHEN duplicate_object THEN NULL;
+END $$;
+
+ALTER TABLE "AccountingAsnadLine" ADD COLUMN IF NOT EXISTS "darsad" DOUBLE PRECISION;
+ALTER TABLE "AccountingAsnadLine" ADD COLUMN IF NOT EXISTS "darsadTalayee" DOUBLE PRECISION;
+ALTER TABLE "AccountingAsnadLine" ADD COLUMN IF NOT EXISTS "maliatDarsad" DOUBLE PRECISION;