AgentMeter v0.4.0

Added

• Added Model Signals analytics for performance, health drift, degradation risk, model quality risk, multi-metric charts, and source/model comparisons.
• Added token cache-hit analytics with trend, day, project, and source comparison views.
• Added TUI pages and navigation for model signals, model risk, token analytics, time analytics, and tool-call drilldowns.
• Added custom model pricing support and startup behavior that works better with go install builds.
• Added read-only API smoke coverage for overview, tokens, model signals, sessions, tools, audit, pricing, settings, and privacy status.

Changed

• Split large frontend views, model-signal chart logic, token analytics, route query handling, and backend API helper code into focused modules.
• Consolidated privacy adapters, shared usage-scope helpers, display formatting, and Web/TUI analytics presentation behavior.
• Updated install, architecture, pricing, model-signal, validation, session-format, roadmap, and UI documentation for the expanded analytics surface.

Fixed

• Fixed routed time-detail pages and improved responsive layout behavior.
• Corrected reasoning-token accounting, token mix ratios, cache-input handling, and pricing suffix fallback behavior.
• Improved Model Signals chart ordering and label overflow handling.

Release Notes

• Release assets are packaged as AgentMeter-windows-amd64.zip, AgentMeter-windows-arm64.zip, AgentMeter-linux-amd64.tar.gz, AgentMeter-linux-arm64.tar.gz, AgentMeter-darwin-amd64.tar.gz, and AgentMeter-darwin-arm64.tar.gz.
• Each release includes checksums.txt; archives include the executable, built Web assets, README files, license, and changelog.