Deploy with Railway support

[infomiho]

• I've extracted some of the generic helpers to the top level
• I've added support for deploying Wasp apps with the Railway CLI
  • We have to wait for this to be released before Wasp can work with Railway CLI: Adds a flag for correct uploading of project subdirs railwayapp/cli#596

Left to do:

• Wait for a new Railway CLI version
• Add checking for minimum Railway CLI version

Closes #1232

[Copilot]

Pull Request Overview

This PR introduces support for deploying Wasp apps with the Railway CLI by adding new Railway-specific providers, commands, and helper functions. Key changes include the creation of new Railway deployment and launch modules, the extraction of common deployment options and helpers, and the integration of the Railway provider into the main deploy command.

Reviewed Changes

Copilot reviewed 22 out of 22 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
waspc/packages/deploy/src/providers/railway/launch/launch.ts	Implements the Railway launch function with error handling for setup and deploy steps.
waspc/packages/deploy/src/providers/railway/launch/LaunchOptions.ts	Defines the interface for launch options specific to Railway.
waspc/packages/deploy/src/providers/railway/index.ts	Registers Railway commands and global options into the CLI.
waspc/packages/deploy/src/providers/railway/helpers/railwayHelpers.ts	Provides Railway-specific helper functions including CLI existence checks, login verification, and service URL retrieval.
waspc/packages/deploy/src/providers/railway/helpers/ports.ts	Exports port constants used in Railway deployments.
waspc/packages/deploy/src/providers/railway/deploy/deploy.ts	Contains the logic for deploying server and client builds to Railway.
waspc/packages/deploy/src/providers/railway/deploy/DeployOptions.ts	Declares deployment options for the Railway provider.
waspc/packages/deploy/src/providers/railway/DeploymentInfo.ts	Generates immutable deployment information including names for client, server, and database.
waspc/packages/deploy/src/providers/railway/CommonOptions.ts	Declares common CLI options shared by Railway commands.
Other Fly provider changes	Adjust import paths and leverage common helpers for consistency.
waspc/packages/deploy/src/index.ts	Integrates the Railway command into the main CLI application.
waspc/packages/deploy/src/helpers.ts	Centralizes utility functions used across providers.

Comments suppressed due to low confidence (1)

waspc/packages/deploy/src/providers/railway/helpers/ports.ts:2

• [nitpick] Both serverAppPort and clientAppPort are set to 8080. Consider using distinct port values for client and server deployments if they are meant to run concurrently, or add a clarifying comment if using the same port is intentional.

export const clientAppPort = 8080;