Hardware Profiles and Linux Index

This update adds two new player-facing ways to read technical feedback faster: a dedicated Hardware row on the main game page, plus a new Linux Index in feature scans.

What's new:

• New hardware profile: Game pages now add a hardware profile that groups Steam hardware-tagged reviews into clear VRAM/RAM cohorts.
• Linux Index: Feature scans now include a Linux / Proton-specific index so Linux players can see compatibility sentiment without digging through general performance summaries.

Under the hood, the hardware profile uses deterministic cohorting from Steam hardware metadata and a cohort-level summary pass over performance-relevant review snippets. The Linux Index uses the same focused scan pattern as the other feature indices, but aimed specifically at Linux native / Proton compatibility reports.