TUI: some system level commands ought be available in the command list prior to session beginning instead of only after session is created

[IdrisGit]

Description

In substance, this issue is somewhat identical to #10495.

some of the system level commands are marked as "Session" commands but are actually applied on a system level, those should be moved to the global command palette under the "System" category.

commands I think should be moved:

• code concealment
• timestamps
• thinking
• tool details
• scrollbar visible

Plugins

No response

OpenCode version

HEAD of dev at time of submission

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

Omarchy

Terminal

Ghostty

[github-actions]

This issue is directly related to #10495, which addresses the same underlying problem of system-level commands being restricted to post-session availability when they should be available in the command list before session creation.

Both issues highlight the same architectural inconsistency where system-level configuration commands are incorrectly categorized as "Session" commands instead of being available globally like other similar commands in the interface.

Feel free to reference #10495 for additional context and discussion on this issue.

[github-actions]

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