feat(notificaciones): mass email notifications over SES

Replaces the four legacy PHP scripts under email.notifications/send*.php
with a single NestJS module. Four jobs (outstanding payments, payment
confirmations, account-status alerts with day-of-week gates, trust
payment confirmations) share one MailService modelled on StorageService:
env-driven SES client, null fallback in dev with console logging, refuses
to send in production when unconfigured.

Schema adds email_notification_log (every attempt, sent/failed/skipped)
and account_status_history (one row per threshold hit, Job 3). Enums
encode the legacy wire shape so external log scrapers keep parsing
notificationType keys verbatim.

Web adds /notificaciones with four trigger cards, a flags panel, and a
paginated log browser. New notification:send ability gates all four
endpoints at MANAGER, matching the renewal:send trust tier.

apps/api/package.json

@@ -12,6 +12,7 @@
   },
   "dependencies": {
     "@aws-sdk/client-s3": "^3.665.0",
+    "@aws-sdk/client-sesv2": "^3.1101.0",
     "@jorgecuadros/database": "workspace:*",
     "@nestjs/common": "^10.4.4",
     "@nestjs/config": "^3.3.0",
@@ -23,9 +24,9 @@
     "class-validator": "^0.14.1",
     "exceljs": "^4.4.0",
     "express-session": "^1.18.0",
-    "pdfkit": "^0.15.1",
     "passport": "^0.7.0",
     "passport-local": "^1.0.0",
+    "pdfkit": "^0.15.1",
     "reflect-metadata": "^0.2.2",
     "rxjs": "^7.8.1"
   },
@@ -34,11 +35,11 @@
     "@nestjs/testing": "^10.4.4",
     "@types/express": "^4.17.21",
     "@types/express-session": "^1.18.0",
-    "@types/pdfkit": "^0.13.5",
     "@types/jest": "^29.5.13",
     "@types/node": "^20.16.11",
     "@types/passport": "^1.0.17",
     "@types/passport-local": "^1.0.38",
+    "@types/pdfkit": "^0.13.5",
     "jest": "^29.7.0",
     "ts-jest": "^29.2.5",
     "ts-node": "^10.9.2",