Merge pull request #122 from hwakabh/feat/115/railway

feat(build): added configs of railway.

railway.toml

@@ -0,0 +1,20 @@
+# https://railway.com/railway.schema.json
+# https://docs.railway.com/reference/config-as-code#configurable-settings
+
+[build]
+builder = "nixpacks"
+nixpacksVersion = "1.30.0"
+nixpacksConfigPath = "nixpacks.toml"
+
+[deploy]
+healthcheckPath = "/healthz"
+healthcheckTimeout = 100
+restartPolicyType = "ON_FAILURE"
+restartPolicyMaxRetries = 10
+
+numReplicas = 2
+
+[deploy.multiRegionConfig]
+# https://docs.railway.com/reference/deployment-regions
+asia-southeast1.numReplicas = 1
+us-west1.numReplicas = 1