Release 0.0.5: health report (M4), installer (M9), update check (M13)

M4 — health report (the 0.0.4 CHANGELOG entry, folded into this release):
- core/health.py: scan journalctl (Xid/panic/OOM/MCE/AER/thermal), SMART,
  NVIDIA driver mismatch, journald persistence, live temps -> findings
- CLI `rigdoctor report` (text/JSON); GUI Health tab; scanner tests

M9 — installer (first cut):
- core/{catalog,sysenv,installer}.py; `rigdoctor install [--check] [-y]`
- GUI Setup tab: detect distro/GPU, show optional components, one-click
  install of missing apt packages via pkexec/sudo

M13 — update check (check half):
- core/updates.py; sidebar shows up-to-date / "Update to v…" / unavailable

Plus tests, version bump to 0.0.5, CHANGELOG, and doc status updates.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "rigdoctor"
-version = "0.0.3"
+version = "0.0.5"
 description = "Modular hardware monitoring & crash diagnostics for Linux gamers."
 readme = "README.md"
 requires-python = ">=3.11"