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>

CHANGELOG.md

@@ -5,6 +5,14 @@ All notable changes to RigDoctor are recorded here. Format follows
 (`MAJOR.MINOR.PATCH`, pre-1.0). `__version__` and `pyproject.toml` must match the git
 release tag (so the auto-updater, D18, can compare versions).
 
+## [0.7.2] - 2026-05-21
+### Changed
+- Removed the GUI **Inventory** tab — use the CLI `rigdoctor inventory` instead. (Inventory is
+  still collected for the relay guest view, so a remote helper still sees the host's hardware.)
+### Fixed
+- Shared terminal caret now sits at the real cursor position (row **and** column) instead of
+  the start of the line.
+
 ## [0.7.1] - 2026-05-21
 ### Fixed
 - Shared terminal: a guest who joined **after** the host enabled the terminal stayed read-only.