fix(dialog):correct scroll behaviour and room for bash cmd

Author: artem-obukhov

internal/tui/components/dialog/permission.go

@@ -505,7 +505,11 @@ func (p *permissionDialogCmp) render() string {
 	buttons := p.renderButtons()
 
 	// Calculate content height dynamically based on window size
-	p.contentViewPort.Height = p.height - lipgloss.Height(headerContent) - lipgloss.Height(buttons) - 2 - lipgloss.Height(title)
+	// Subtract 3 for the outer frame: border top (1) + border bottom (1) + top padding (1)
+	// Subtract 2 for the spacer lines between title/header and buttons/bottom
+	frameOverhead := 3
+	spacers := 2
+	p.contentViewPort.Height = max(1, p.height-frameOverhead-lipgloss.Height(headerContent)-lipgloss.Height(buttons)-spacers-lipgloss.Height(title))
 	p.contentViewPort.Width = p.width - 5
 
 	// Render content based on tool type
@@ -565,17 +569,17 @@ func (p *permissionDialogCmp) SetSize() tea.Cmd {
 	}
 	switch p.permission.ToolName {
 	case tools.BashToolName:
-		p.width = int(float64(p.windowSize.Width) * 0.4)
-		p.height = int(float64(p.windowSize.Height) * 0.3)
+		p.width = max(40, int(float64(p.windowSize.Width)*0.4))
+		p.height = max(15, int(float64(p.windowSize.Height)*0.4))
 	case tools.EditToolName, tools.MultiEditToolName:
 		p.width = int(float64(p.windowSize.Width) * 0.8)
 		p.height = int(float64(p.windowSize.Height) * 0.8)
 	case tools.WriteToolName:
 		p.width = int(float64(p.windowSize.Width) * 0.8)
 		p.height = int(float64(p.windowSize.Height) * 0.8)
 	case tools.FetchToolName, tools.WebSearchToolName:
-		p.width = int(float64(p.windowSize.Width) * 0.4)
-		p.height = int(float64(p.windowSize.Height) * 0.3)
+		p.width = max(40, int(float64(p.windowSize.Width)*0.4))
+		p.height = max(15, int(float64(p.windowSize.Height)*0.4))
 	default:
 		p.width = int(float64(p.windowSize.Width) * 0.7)
 		p.height = int(float64(p.windowSize.Height) * 0.5)
@@ -585,6 +589,7 @@ func (p *permissionDialogCmp) SetSize() tea.Cmd {
 
 func (p *permissionDialogCmp) SetPermissions(permission permission.PermissionRequest) tea.Cmd {
 	p.permission = permission
+	p.contentViewPort.GotoTop()
 	return p.SetSize()
 }