Add web topology viewer with hot path visualization
- FastAPI backend (server.py) with REST API + WebSocket for event streaming - SVG-based topology viewer (index.html) with SIP/CUBE/PE drill-down views - Event logging infrastructure (event_log.py) generating events from real probe cases (H2D/D2H/PE-DMA) and bench workloads (QKV GEMM single/multi-PE) - Timeline replay engine with play/pause, speed control, and scrubbing - Workload selector dropdown grouped by category (Probe/Bench) - CLI entry points: kernbench web, ./kernbench wrapper scripts Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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