Detect & fix React dev-mode memory leaks from hot-reload & secondary renderers

Detect & fix React dev-mode memory leaks from hot-reload & secondary renderers targets a $4.8B = 4M frontend engineering teams x $1.2K ACV (developer tooling/observability spend per team) total addressable market with medium saturation and a year-over-year growth rate of 18% annually (front-end tooling & observability segment growing as cloud-native and SPA complexity rise).

Key trends driving demand: React ecosystem growth -- More companies use React and secondary renderers (react-three-fiber, native bridges), increasing surface area for dev-mode bugs.; Fast dev servers & hot-reload -- Tools like Vite and react-refresh increase developer velocity but also expose hot-reload-specific memory problems.; Observability-for-dev -- Shift toward developer-facing observability (vs production-only) to catch issues earlier in the lifecycle.; AI-assisted debugging -- Large models and code-analysis improvements enable automated root-cause suggestions and patch generation..