Fix SSH URL validation in Git workspace setup

[Copilot]

The "West Workspace from Git" and "Zephyr IDE Workspace from Git" setup options were incorrectly rejecting SSH URLs like git@github.com:user/repo.git due to overly restrictive validation that required all Git URLs to contain ://.

Problem

Users trying to set up workspaces with SSH URLs would encounter validation errors:

The validation logic only accepted URLs with protocols (containing ://), which excluded the common SSH format git@host:path.

Solution

• Added comprehensive Git URL validation in src/utilities/utils.ts that accepts:

  • HTTPS URLs: https://github.com/user/repo.git
  • SSH URLs: git@github.com:user/repo.git
  • SSH with protocol: ssh://git@github.com/user/repo.git
  • Git protocol: git://github.com/user/repo.git

• Updated workspace setup functions in src/setup_utilities/workspace-setup.ts to use the new validation

• Improved user experience with placeholder text showing SSH examples: "https://github.com/user/repo.git or git@github.com:user/repo.git"

Validation Results

URL Format	Before	After
git@github.com:user/repo.git	❌ "must include protocol"	✅ Valid
https://github.com/user/repo.git	✅ Valid	✅ Valid
ssh://git@github.com/user/repo.git	✅ Valid	✅ Valid

The fix maintains full backward compatibility while enabling SSH workflow support that works with both git clone and west init commands.

Fixes #185.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• update.code.visualstudio.com
  • Triggering command: node /home/REDACTED/work/zephyr-ide/zephyr-ide/node_modules/.bin/vscode-test (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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