Fix SSG Pipeline Concurrency Hanging and Suppress Component Error Noise

Description The SSG pipeline experienced two critical issues during full site generation (3701 routes):

1. Intense JS Error Noise: Buggy component logic or unmocked XHR requests caused noisy trace outputs (e.g. Pipeline: IPC error, TypeError via SsrService hydration) polluting the build logs.
2. Concurrency Freeze: The SSG runRendererProcess workers kept NodeJS event loops alive indefinitely due to internal Neo framework background loops, causing Promise.all inside build.mjs batch processing to hang.

Resolution

• Wrap hasError handling in ssrRenderer.mjs to bypass originalConsoleError tracing.
• Force explicitly exit via process.exit(0) when fs.writeFile completes successfully inside the SSR worker child process.