fix(dashboard): restore ResponsiveContainer in ChartContainer

[GenerQAQ]

Why we need this PR?

After the tooltip sync changes in #534, dashboard overview charts stopped rendering. The root cause is that the dashboard's ChartContainer was missing Recharts' ResponsiveContainer wrapper (present in the OSS version), which gives charts their dimensions. The ChartWrapper had a cloneElement workaround injecting responsive: true and inline styles, but this conflicted with how Recharts expects to manage sizing.

Describe your solution

• Restore ResponsiveContainer wrapper in dashboard/components/ui/chart.tsx to match the OSS implementation
• Restore the aspect-video CSS class for proper container sizing
• Fix the children type to match ResponsiveContainer's expected children type
• Remove the cloneElement hack in ChartWrapper that is no longer needed

Implementation Tasks

• Restore ResponsiveContainer in ChartContainer
• Add back aspect-video class
• Remove cloneElement workaround in ChartWrapper
• Clean up unused cloneElement import

Impact Areas

• Dashboard
• Client SDK (Python)
• Client SDK (TypeScript)
• Core Service
• API Server
• CLI Tool
• Documentation
• Other: ...

Checklist

• Open your pull request against the dev branch.
• All tests pass in available continuous integration systems (e.g., GitHub Actions).
• Tests are added or modified as needed to cover code changes.