feat: attaching to the container for inserting inputs

[okunamayanad]

What is this PR about?

Adds a way to input to the process inside the container.

Checklist

Before submitting this PR, please make sure that:

• You created a dedicated branch based on the canary branch.
• You have read the suggestions in the CONTRIBUTING.md file https://github.com/Dokploy/dokploy/blob/canary/CONTRIBUTING.md#pull-request
• You have tested this PR in your local instance.

Issues related (if applicable)

closes #1207

Screenshots (if applicable)

[okunamayanad]

screenrecording-2025-12-18_18-27-35.mp4

Here's how it looks like.
For some reason it repeats a few characters from the input, I haven't figured out why yet.

[skmedix]

For some reason it repeats a few characters from the input, I haven't figured out why yet.

I think it's because it creates a separate PTY, quick solution would probably to prepend command with stty raw -echo to put it into raw mode, or just send commands directly via docker exec id sh. I will look into this in few days to figure it out