fix(share): terminal caret position; remove GUI Inventory tab (use CLI)

- The shared terminal caret now sits at the real cursor (row and column) instead
  of the start of the line.
- Remove the GUI Inventory tab; `rigdoctor inventory` (CLI) covers it. Inventory is
  still collected for the relay guest view (so a remote helper sees the host's
  hardware) and via launch elevation. Deletes gui/inventory_page.py.

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 = "0.7.1"
+version = "0.7.2"
 description = "Modular hardware monitoring & crash diagnostics for Linux gamers."
 readme = "README.md"
 requires-python = ">=3.11"