fix(share): terminal scrollback for large output

Render with pyte.HistoryScreen and show scrollback + screen, so large output
(ls -la, cat, etc.) can be scrolled up to read. Auto-scroll to the bottom only
when already at the bottom; preserve position when the user has scrolled up.

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

CHANGELOG.md

@@ -5,6 +5,11 @@ 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).
 
+## [0.7.3] - 2026-05-21
+### Fixed
+- Shared terminal now has **scrollback** — large output (e.g. `ls -la`) can be scrolled up to
+  read; it keeps a history buffer and only auto-scrolls to the bottom when you're already there.
+
 ## [0.7.2] - 2026-05-21
 ### Changed
 - Removed the GUI **Inventory** tab — use the CLI `rigdoctor inventory` instead. (Inventory is

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "rigdoctor"
-version = "0.7.2"
+version = "0.7.3"
 description = "Modular hardware monitoring & crash diagnostics for Linux gamers."
 readme = "README.md"
 requires-python = ">=3.11"

src/rigdoctor/__init__.py

@@ -1,3 +1,3 @@
 """RigDoctor — modular hardware monitoring & crash diagnostics for Linux gamers."""
 
-__version__ = "0.7.2"
+__version__ = "0.7.3"

src/rigdoctor/gui/terminal_widget.py

@@ -24,7 +24,7 @@ class TerminalView(QPlainTextEdit):
         self.setUndoRedoEnabled(False)
         self.setMinimumHeight(260)
         self._rows, self._cols = rows, cols
-        self._screen = pyte.Screen(cols, rows)
+        self._screen = pyte.HistoryScreen(cols, rows, history=1000, ratio=0.5)
         self._stream = pyte.ByteStream(self._screen)
 
     def grid(self) -> tuple[int, int]:
@@ -38,15 +38,24 @@ class TerminalView(QPlainTextEdit):
         self._screen.reset()
         self._render()
 
+    def _row_text(self, row) -> str:
+        return "".join(row[x].data for x in range(self._cols)).rstrip()
+
     def _render(self) -> None:
-        self.setPlainText("\n".join(self._screen.display))
-        # Place the caret at the terminal's actual cursor (row, col) and keep it in view.
-        cursor = self.textCursor()
-        cursor.movePosition(QTextCursor.MoveOperation.Start)
-        cursor.movePosition(QTextCursor.MoveOperation.Down, QTextCursor.MoveMode.MoveAnchor, self._screen.cursor.y)
-        cursor.movePosition(QTextCursor.MoveOperation.Right, QTextCursor.MoveMode.MoveAnchor, self._screen.cursor.x)
-        self.setTextCursor(cursor)
-        self.ensureCursorVisible()
+        bar = self.verticalScrollBar()
+        at_bottom = bar.value() >= bar.maximum() - 2
+        prev = bar.value()
+        history = [self._row_text(r) for r in self._screen.history.top]  # scrollback
+        self.setPlainText("\n".join(history + list(self._screen.display)))
+        if at_bottom:  # follow output; place caret at the real (row, col)
+            cursor = self.textCursor()
+            cursor.movePosition(QTextCursor.MoveOperation.Start)
+            cursor.movePosition(QTextCursor.MoveOperation.Down, QTextCursor.MoveMode.MoveAnchor, len(history) + self._screen.cursor.y)
+            cursor.movePosition(QTextCursor.MoveOperation.Right, QTextCursor.MoveMode.MoveAnchor, self._screen.cursor.x)
+            self.setTextCursor(cursor)
+            self.ensureCursorVisible()
+        else:  # user scrolled up to read — keep their place
+            bar.setValue(prev)
 
     def resizeEvent(self, event):  # noqa: N802 (Qt override)
         super().resizeEvent(event)