Feature/context menu clean

[desireddymohithreddy0925]

Description

This PR implements a global Context Menu system across @termuijs/core, @termuijs/widgets, and @termuijs/ui. It adds a ContextMenuManager in core that listens to right-clicks globally in App.ts. Widgets can now define a contextMenu array of items. When a right-click occurs on a widget with this property, it dispatches to a new ContextMenuOverlay in @termuijs/ui which mounts the existing ContextMenu widget safely at the highest z-index without manual layout state management from applications. All existing exports from ui/src/index.ts remain intact.

Related Issue

Closes #2858

Which package(s)?

@termuijs/core, @termuijs/widgets, @termuijs/ui

Type of Change

• 🐛 Bug fix (type:bug)
• ✨ Feature (type:feature)
• 📝 Docs (type:docs)
• 🧪 Tests (type:testing)
• ♻️ Refactor (type:refactor)
• 🎨 Design / UX (type:design)
• ♿ Accessibility (type:accessibility)
• ⚡ Performance (type:performance)
• 🔧 DevOps / CI (type:devops)
• 🔒 Security (type:security)

Checklist

• ⭐ You starred the repo. The never rules are respected.
• 🧪 Tests are included or updated.
• 🏗️ bun run build passes locally.
• 🧹 bun run lint and bun run typecheck pass locally.
• 📦 The scope is strictly confined to the packages specified.

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 98fa4a97-cad2-4777-be4f-e764e16774b1

📥 Commits

Reviewing files that changed from the base of the PR and between 61eaa4e and 951afd2.

📒 Files selected for processing (7)

• packages/core/src/app/App.ts
• packages/core/src/app/ContextMenuManager.ts
• packages/core/src/index.ts
• packages/ui/src/ContextMenuOverlay.test.ts
• packages/ui/src/ContextMenuOverlay.ts
• packages/ui/src/index.ts
• packages/widgets/src/base/Widget.ts

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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