[V3] Run `go mod tidy` automatically after `wails init`

[triadmoko]

Is your feature request related to a problem? Please describe.

No response

Describe the solution you'd like

After running wails init, the generated project does not automatically perform go mod tidy. As a result, developers need to manually run it to fetch required modules and clean up the go.mod/go.sum files.

Describe alternatives you've considered

The wails init command should automatically run:

go mod tidy

...after the project structure is generated.

Additional context

Benefits:

• Improves developer experience and reduces friction for new users.
• Prevents errors during the first build due to missing dependencies.
• Ensures a clean and consistent go.mod and go.sum.

Steps to Reproduce:

Run wails init

1. Open the project directory
2. Try to run wails dev or go run .
3. Notice missing dependencies unless go mod tidy is run manually

Proposed Solution:

Add a call to go mod tidy as the final step in the init process. This could be done via exec.Command("go", "mod", "tidy") in the Go code, or appropriate shell execution logic.

[triadmoko]

I am willing to do it