Refactor TUI panels into shared renderer and add Chevron/Operations panels

[theokeist]

Motivation

• Make the TUI gate rendering easier to extend and maintain by consolidating repeated panel rendering logic into a single helper.
• Surface more runtime/operator information in the TUI by adding Chevron status and Operations panels so developers can see more at-a-glance details.

Description

• Replaced duplicated panel rendering code in src/Console/Commands/ServeCommand.php with a new renderTuiPanel(string $title, array $lines, int $width): void helper and reused padStrip/color helpers for alignment.
• Added three new panel blocks to the TUI flow: CHEVRON STATUS (gateway chevron/iris state), OPERATIONS (links/commands/docs), and reused CENTRAL ANALYSIS and RUNNING panels via the shared renderer.
• Kept prior behavior for the tui gate view while centralizing layout concerns and ensuring columns remain aligned by reusing the existing padding/strip helpers.

Testing

• No automated tests were executed for this change.

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