feat: consolidate data dashboard and redesign conversations

[Soulter]

Summary

• consolidate statistics, conversations, logs, and traces under a tabbed Data workspace and remove the duplicate sidebar entries
• refresh the statistics dashboard styling, labels, model colors, platform icons, aliases, and live uptime display
• add a paginated conversation workspace with keyword, bot ID, conversation type, UMO, and time sorting filters
• support compact multi-select conversation actions, title editing, detail previews, and a legacy-view fallback
• add a read-only, word-wrapped Monaco viewer for the selected conversation's raw history JSON
• extend the conversation API for server-side filtering, sorting, and filter options, with regenerated API clients and public OpenAPI artifacts
• update Chinese and English WebUI, FAQ, configuration, and platform guides for the new Data workspace navigation

Testing

• uv run pytest tests/test_conversation_list.py tests/test_fastapi_v1_dashboard.py tests/unit/test_stat_service.py (96 passed)
• cd dashboard && pnpm build
• cd docs && pnpm docs:build
• uv run ruff format .
• uv run ruff check .

Summary by Sourcery

Consolidate dashboard data tools into a unified Data workspace and enhance conversation discovery and management.

New Features:

• Add a unified Data workspace with tabbed access to statistics, conversations, logs, and traces.
• Introduce a paginated conversation workspace with server-side filtering, sorting, session grouping, previews, title editing, bulk export/deletion, and legacy-view fallback.
• Add read-only raw conversation history inspection and configurable conversation filter options through the API.

Enhancements:

• Refresh the statistics dashboard with updated visual styling, platform and model presentation, aliases, copy actions, and live uptime tracking.
• Expose conversation filtering and sorting through the database and service layers, with regenerated clients and OpenAPI artifacts.
• Reorganize navigation and preserve compatibility through redirects from the previous data-related routes.
• Improve console integration and platform icon handling across the dashboard.

Documentation:

• Update English and Chinese WebUI, FAQ, configuration, and platform documentation for the Data workspace navigation and conversation features.

Tests:

• Expand database, API, and statistics service coverage for conversation filters, grouped pagination, filter options, sorting, and UMO display names.

[sourcery-ai]

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