fix: restore railway and nixpacks

config to last known good state — revert bad
Node.js config that broke Python Railway deploy

Made-with: Cursor

.node-version

@@ -1 +0,0 @@
-20

.npmrc

@@ -1,2 +0,0 @@
-engine-strict=false
-legacy-peer-deps=true

nixpacks.toml

@@ -1,4 +1 @@
-providers = ["node"]
-
-[variables]
-NIXPACKS_NODE_VERSION = "20"
+providers = ["python"]

railway.toml

@@ -1,10 +1,9 @@
 [build]
 builder = "nixpacks"
-buildCommand = "npm ci --legacy-peer-deps && npx prisma generate && npm run build:production"
 
 [deploy]
-startCommand = "npx prisma migrate deploy && npm run start"
-healthcheckPath = "/api/v1/info"
-healthcheckTimeout = 120
+startCommand = "uvicorn main:app --host 0.0.0.0 --port $PORT"
+healthcheckPath = "/health"
+healthcheckTimeout = 60
 restartPolicyType = "ON_FAILURE"
 restartPolicyMaxRetries = 3