Add explicit OPTIONS routes for CORS preflight (Railway) #10

	name: Backend CI

	on:
	push:
	paths:
	- "backend/**"
	- ".github/workflows/backend-ci.yml"
	pull_request:
	paths:
	- "backend/**"
	- ".github/workflows/backend-ci.yml"

	jobs:
	test:
	runs-on: ubuntu-latest

	services:
	postgres:
	image: postgres:16
	env:
	POSTGRES_USER: postgres
	POSTGRES_PASSWORD: postgres
	POSTGRES_DB: papermind
	ports:
	- "5432:5432"
	options: >-
	--health-cmd="pg_isready -U postgres"
	--health-interval=10s
	--health-timeout=5s
	--health-retries=5

	redis:
	image: redis:7
	ports:
	- "6379:6379"

	env:
	DATABASE_URL: postgresql://postgres:postgres@localhost:5432/papermind
	REDIS_URL: redis://localhost:6379/0
	GEMINI_API_KEY: dummy

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

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.11"

	- name: Install dependencies
	working-directory: backend
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt
	pip install pytest

	- name: Run tests
	working-directory: backend
	run: pytest

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