Observability Improvements

We've redesigned the logs and metrics views for better visibility and faster debugging.

Logs now include an interactive volume chart that visualizes log frequency over time. Click a bar to zoom into that time window, or drag across a range to filter: the log viewer updates in real time. The logs view is now full-width by default, replacing the previous fullscreen toggle.

Metrics also get the full-width treatment, along with a new grid view that displays charts in a two-column layout so you can see more metrics at once. A toggle at the top of the page lets you switch between grid and list views, and your preference is saved across sessions.