Introducing Workers Analytics Engine

Introduced Workers Analytics Engine, a new serverless time-series analytics platform built on Cloudflare's existing analytics technology. It allows developers to collect and query telemetry data from Cloudflare Workers using a structured event log model with blobs (strings for grouping/filtering) and doubles (numbers for aggregation). Key features include low-latency reporting (seconds), unlimited cardinality of label values, fast queries across any timescale, and integration with SQL and GraphQL APIs for data querying. It also supports visualization with tools like Grafana. The initial implementation requires configuring bindings in wrangler.toml and using the `writeDataPoint` API within Workers. Future plans include named blobs/doubles, on-the-fly binding definition, and richer dashboard analytics.