feat: add notifications REST API and creation service (closes #14) #56

	# StellarSettle API – CI (lint, type-check, test, build)
	# Node 22.x LTS, TypeScript 5.7+, PostgreSQL 14, Jest
	name: API CI

	on:
	push:
	branches: [main, develop]
	pull_request:
	branches: [main, develop]

	jobs:
	test:
	runs-on: ubuntu-latest

	services:
	postgres:
	image: postgres:14
	env:
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: postgres
	POSTGRES_DB: test
	ports:
	- 5432:5432
	options: >-
	--health-cmd pg_isready
	--health-interval 10s
	--health-timeout 5s
	--health-retries 5

	env:
	NODE_ENV: test
	DATABASE_URL: postgresql://postgres:postgres@localhost:5432/test

	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Setup Node.js
	uses: actions/setup-node@v4
	with:
	node-version: "22"
	cache: "npm"

	- name: Install dependencies
	run: npm ci

	- name: Run linter
	run: npm run lint

	- name: Type check
	run: npm run type-check

	- name: Run tests
	run: npm test

	- name: Build
	run: npm run build

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