Opening "Calibrate Printer" (#btnCalibratePrinter) overflows the window: the 270 pt sidebar is pushed beyond the left edge. The Stage 0 dashboard also has no Escape / cancel-action shortcut; the only exit is "Return to Profiling" (#btnCalReturn).
Root cause
CalibrationView.swift uses a macOS Form with Spacer() inside row HStacks → unbounded ideal width.
RootView.swift right content column lacks .frame(maxWidth: .infinity, maxHeight: .infinity), so the HStack widens beyond the window; macOS centers the oversized root and the sidebar lands at negative X.
No ScrollView around the dashboard; only exit has no .cancelAction shortcut.
docs/21-ui-reference.md Stage 0 id list updated (btnCalReturn, calNeutralEmphasis).
UI tests cover sidebar position and dismissal.
### Description
Opening "Calibrate Printer" (`#btnCalibratePrinter`) overflows the window: the 270 pt sidebar is pushed beyond the left edge. The Stage 0 dashboard also has no Escape / cancel-action shortcut; the only exit is "Return to Profiling" (#btnCalReturn).
### Root cause
1. `CalibrationView.swift` uses a macOS `Form` with `Spacer()` inside row HStacks → unbounded ideal width.
2. `RootView.swift` right content column lacks `.frame(maxWidth: .infinity, maxHeight: .infinity)`, so the HStack widens beyond the window; macOS centers the oversized root and the sidebar lands at negative X.
3. No `ScrollView` around the dashboard; only exit has no `.cancelAction` shortcut.
### Acceptance criteria
- [x] Sidebar stays fully on-screen when Stage 0 opens (`btnCalibratePrinter.frame.minX >= 0`).
- [x] RootView right column constrained with `.frame(maxWidth: .infinity, maxHeight: .infinity)`.
- [x] `CalibrationView` uses `ScrollView` + section cards matching Stages 1–5 (no `Form`).
- [x] `#btnCalReturn` has `.keyboardShortcut(.cancelAction)` (Escape exits).
- [x] Log uses shared `ProcessLogView` (`calLogContainer` / `calLog`).
- [x] `docs/21-ui-reference.md` Stage 0 id list updated (`btnCalReturn`, `calNeutralEmphasis`).
- [x] UI tests cover sidebar position and dismissal.
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Description
Opening "Calibrate Printer" (
#btnCalibratePrinter) overflows the window: the 270 pt sidebar is pushed beyond the left edge. The Stage 0 dashboard also has no Escape / cancel-action shortcut; the only exit is "Return to Profiling" (#btnCalReturn).Root cause
CalibrationView.swiftuses a macOSFormwithSpacer()inside row HStacks → unbounded ideal width.RootView.swiftright content column lacks.frame(maxWidth: .infinity, maxHeight: .infinity), so the HStack widens beyond the window; macOS centers the oversized root and the sidebar lands at negative X.ScrollViewaround the dashboard; only exit has no.cancelActionshortcut.Acceptance criteria
btnCalibratePrinter.frame.minX >= 0)..frame(maxWidth: .infinity, maxHeight: .infinity).CalibrationViewusesScrollView+ section cards matching Stages 1–5 (noForm).#btnCalReturnhas.keyboardShortcut(.cancelAction)(Escape exits).ProcessLogView(calLogContainer/calLog).docs/21-ui-reference.mdStage 0 id list updated (btnCalReturn,calNeutralEmphasis).