feat(console): isolate execution and improve mobile REPL UX

[bajrangCoder]

Closes: #2802
Closes: #2810

• run console JavaScript in a cancellable Web Worker
• protect the app from infinite loops and recursion
• preserve history with variable-height virtualization
• restore the inline REPL layout
• fix mobile keyboard resizing and viewport gaps
• add clear and stop controls

[greptile-apps]

Greptile Summary

The PR moves console execution into a cancellable worker while retaining an explicit live-page execution mode, and rebuilds the console around a variable-height virtual transcript with mobile viewport handling.

• Adds isolated execution, timeout, stop, clear, and execution-context controls.
• Adds worker build entries and preview routing for the generated worker asset.
• Adds footer-aware variable-height virtualization for console history.
• Updates standalone Android and overlay viewport behavior for software keyboards.
• Adds unit coverage for execution routing, worker lifecycle, viewport calculations, and virtual-list pinning.

Confidence Score: 5/5

The PR appears safe to merge.

No blocking failure remains.

Important Files Changed

Filename	Overview
src/lib/console.js	Integrates the execution-context controls, worker executor, inline prompt, viewport updates, and virtualized transcript; the previously reported page-inspection issue is addressed through explicit Page mode.
src/lib/consoleRuntime.js	Implements worker lifecycle, cancellation and timeout behavior, execution routing, and mobile viewport calculations.
src/lib/consoleWorker.js	Evaluates isolated commands, snapshots results safely for messaging, and rate-limits console output.
src/components/virtualList/variable.js	Implements retained variable-height virtualization with footer-aware bottom pinning and container, item, and footer resize observation.
src/lib/run.js	Serves the console worker asset and injects its generated URL into previews using constrained UUID-derived names.
src/plugins/browser/android/com/foxdebug/browser/BrowserActivity.java	Configures keyboard-driven WebView resizing and adjusts system-bar and IME inset handling for console and browser modes.

Sequence Diagram

sequenceDiagram
    actor User
    participant Console as Console UI
    participant Router as Execution Router
    participant Worker as Console Worker
    participant Page as Preview Page

    User->>Console: Submit JavaScript
    Console->>Router: Execute selected context
    alt Worker context
        Router->>Worker: postMessage(code)
        Worker-->>Console: console messages / result / error
        opt Stop or timeout
            Console->>Worker: terminate()
        end
    else Page context
        Router->>Page: Evaluate code
        Page-->>Console: result / error
    end

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_{Reviews (3): Last reviewed commit: "address the pinning regression" | Re-trigger Greptile}

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[RohitKushvaha01]

It works but i didn't like the ui, it doesn't look right