v1.44.0 — Regression Tracker, Postmortem Generator & Fleet Topology

What's New

✨ Features

• Agent Regression Tracker dashboard — detect and visualize agent performance regressions over time
• Incident Postmortem Generator dashboard — automated postmortem report generation from incident data
• Fleet Topology Map — interactive network visualization of agent fleet relationships
• Cost Anomaly Detector dashboard — proactive cost monitoring and alerting

🐛 Bug Fixes

• Add input validation to anomaly endpoints and fix profiler column name bug

⚡ Performance

• Reuse event index in _max_concurrent_usage, eliminating O(R×E) scan
• Single-pass _compute_trend\ with closed-form x_mean in CapacityPlanner
• Cache normalisation, hashing, and trend computation in error fingerprinting
• Replace O(n×m) \Array.includes\ with Set lookups in profiler list endpoint
• Amortize entropy syscall with pre-allocated random ID pool

🔧 Refactor & Cleanup

• Extract
  ecordFailedDelivery\ helper to deduplicate 3 identical INSERT blocks in webhooks
• Remove 33 unused imports across 20 CLI modules, fix undefined name bug in cli_bottleneck

🧪 Tests

• Add 46 tests for \cli_digest\ module

📦 Dependencies

• Bump pydantic requirement from >=2.13.0 to >=2.13.3
• Bump docker/login-action 3→4, codecov/codecov-action 5→6, docker/setup-buildx-action 3→4
• Bump actions/attest-build-provenance 2→4, actions/checkout 4→6

Full Changelog: v1.43.0...v1.44.0