[FEATURE]: Show Metadata (e.g. Model Context Limit) while Selecting Models in Opencode CLI Menu #19411

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Describe the enhancement you want to request

Description
Currently, when selecting models via Ctrl+P in the Opencode CLI, users lack visibility into the specific technical specifications of each model. Unlike the Opencode Desktop version—which clearly displays features like text/image/PDF support, reasoning capabilities, and context limits—the CLI version provides only the model names and its provider.

The Problem
The lack of metadata leads to a suboptimal user experience and technical errors. For example:

Context Mismatch: Users may switch to a model with a smaller context window within the same session, triggering errors like "exceeding model context limit after compaction".

Feature Blindness: Users cannot easily identify which models support multimodal inputs (Images/PDFs) or specialized "Reasoning" modes without referring to external documentation.

Proposed Solution
Enhance the Ctrl+P model selection menu in the CLI to include brief metadata tags or a detailed info line for the highlighted model.

Suggested UI Elements:

Context Limit: e.g., (128k)
Feature Tags: [Vision], [PDF], [Reasoning]
Visual Layout Example:

> gpt-4o-mini [Vision, PDF] 128k
o1-preview [Reasoning] 128k
claude-3-5-sonnet [Vision] 200k