Week of April 27: large-capture materialization and test ladder

Performance

• Sped up upload indexing materialization with native sharkd range reads, bounded DNS and TLS metadata paths, and reduced tshark fallbacks.
• Collapsed redundant ARP and DNS postindex queries, reused upload insight snapshots, and trimmed stored PacketStats payloads.
• Added guarded full-context shard workers and packet caps for fields-row evidence requests.

Platform

• Added the test ladder harness and stabilized non-paid validation lanes for frontend, backend, sharkd, and integration coverage.
• Expanded IDS fidelity manifest support and stored fidelity baselines under the external data root.
• Increased the frontend build heap limit for static production builds.

Agent and analyzer

• Added PCAP list AI analysis overview, capture quality summaries, and clearer AI thread history details.
• Moved AI analyses earlier in workspace navigation and tuned PCAP action colors.

Bug fixes

• Fixed upload packet view routing, PCAP library navigation, OT tab availability, upload insight readiness, and production Agent placeholders.
• Corrected AI usage quota units and queued histogram materialization fallbacks.