v1.0.2 of flow_routing

The next-generation Flutter router. Typed routes, pipeline guards, first-class web support, and performance built from first principles. Changelog excerpt: - Add segment-indexed route matching for faster lookups on large route trees - Cache route definitions by name in RouteRegistryfor O(1) lookup - Gate LoggingMiddlewareoutput behind kDebugModefor production builds - Harden CI with format checks and example app analysis - Tighten analyzer rules and Flutter SDK constraint (>=3.12.0)