[FEATURE] Read-only terminal view for watching long-running bash commands

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

When Claude Code executes long-running bash commands (like builds that take several minutes), users have no way to watch the real-time output. They must wait until the command completes to see any output, which makes it difficult to:

• Monitor build progress
• See compilation warnings/errors as they occur
• Know if a command is stuck or making progress
• Estimate remaining time

Proposed Solution

Add a read-only terminal view that users can optionally open to watch the live stdout/stderr of commands Claude is executing. This could be:

1. A toggleable panel in the IDE extension (VS Code/JetBrains)
2. A /watch command that opens a live stream of the current running command
3. An option in the UI to "Show live output" for long-running commands

Alternative Solutions

Users must run the command in a separate terminal themselves, which defeats the purpose of having Claude manage the build process.

Priority

High - Significant impact on productivity

Feature Category

Interactive mode (TUI)

Use Case Example

Running build commands like python build.py or bazel build //... that take 2-10+ minutes.

Additional Context

_No response_