AD-701: Scaffold Web App Shell

[alph-cmky]

Source: docs/development/task-backlog.md

Milestone: Phase 7: Web UI

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AD-701: Scaffold Web App Shell

Goal: Create the three-panel developer workspace layout.

Files:

• Create apps/web/src/app/page.tsx
• Create apps/web/src/components/app-shell.tsx
• Create apps/web/src/components/sidebar.tsx
• Create apps/web/src/components/inspector.tsx
• Create apps/web/src/styles/globals.css

Tasks:

• Implement top bar, left sidebar, main work area, and right inspector.
• Add navigation entries for Chat, Agents, Workflows, Tasks, Runtimes, Audit, and Settings.
• Use dense tool-style layout with stable panel widths.
• Commit with message feat: add web app shell.

Acceptance Criteria:

• Desktop layout clearly shows navigation, primary work area, and contextual inspector.