29f4a45df8
The evaluate-and-suggest half of M6: a read-only findings report (D9) over system settings that affect gaming stability/performance, each with the exact fix command. - core/gameenv.py: PCIe ASPM, NVIDIA persistence mode, CPU governor (the three seed-case contributors to GPU bus-drop / Xid 79), GameMode, MangoHud, vm.swappiness, shader disk cache, THP, CPU mitigations, Proton versions. Pure evaluate_* helpers split from IO for testing; reuses the M4 Finding model. - steam.proton_versions(): surfaces installed Proton builds for the report. - CLI: rigdoctor gameenv (text / --json); render_health() gained a title arg. - GUI: new Environment page; extracted a shared finding_card widget and switched the Health page to it. - Tests for the pure evaluators + aggregate. Also fix: desktop notifications now use the RigDoctor icon (installed theme copy -> bundled asset -> stock fallback) instead of a generic stock icon, matching the app/dock icon. Docs (MODULES/ROADMAP) updated; version 0.8.0 -> 0.9.0. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>