Fix verbose version output by suppressing startup log for version command

[Copilot]

The gabs version command was producing overly verbose output by including the startup log before the actual version information:

$ gabs version
2025-09-14T22:04:22.582+0200	INFO	util/log.go:57	starting gabs	{"version": "0.1.0", "commit": "unknown", "built": "unknown", "subcmd": "version"}
gabs 0.1.0 (unknown)

This makes the command unsuitable for clean terminal usage and scripting scenarios where only the version information is needed.

Changes:

• Extended the startup log suppression condition in cmd/gabs/main.go to include the version command alongside the existing games command
• Now both version and games commands produce clean output suitable for terminal usage and automation

After the fix:

$ gabs version
gabs 0.1.0 (unknown)

Verification:

• ✅ gabs version now produces clean output
• ✅ gabs games commands still produce clean output
• ✅ gabs server still shows startup logs as expected for debugging server operations
• ✅ Invalid commands still show startup logs for error context
• ✅ All existing tests continue to pass

This change maintains backward compatibility while providing the expected clean output for version queries.

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.