refactor: move guides from left toolbar to settings

- Remove guides from LeftToolbar pane type buttons
- Remove 'guides' from PaneType union and PANE_LABELS
- Remove GuidesPane from pane exports and ThreePanelLayout rendering
- Add migration to reset persisted slots that had type 'guides'
- Guides remain accessible via Settings modal (GuidesViewer tab)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/layout/LeftToolbar.tsx

@@ -7,7 +7,6 @@ import {
   LayoutList,
   Map,
   Folder,
-  FileText,
   Settings,
 } from 'lucide-react';
 import type { PaneType } from '../panes/types';
@@ -22,23 +21,21 @@ interface LeftToolbarProps {
   slotBType: PaneType | null;
 }
 
-// Map pane types to their icons (chat removed in rah-light)
+// Map pane types to their icons (chat removed in rah-light, guides moved to settings)
 const PANE_TYPE_ICONS: Record<string, typeof LayoutList> = {
   views: LayoutList,
   map: Map,
   dimensions: Folder,
-  guides: FileText,
 };
 
 const PANE_TYPE_LABELS: Record<string, string> = {
   views: 'Feed',
   map: 'Map',
   dimensions: 'Dimensions',
-  guides: 'Guides',
 };
 
-// Pane types shown in the toolbar (excludes 'node' which is opened via Feed, chat removed in rah-light)
-const TOOLBAR_PANE_TYPES: PaneType[] = ['views', 'map', 'dimensions', 'guides'];
+// Pane types shown in the toolbar (excludes 'node', 'chat', and 'guides' which is in settings)
+const TOOLBAR_PANE_TYPES: PaneType[] = ['views', 'map', 'dimensions'];
 
 interface ToolbarButtonProps {
   icon: typeof Search;

src/components/layout/ThreePanelLayout.tsx

@@ -25,8 +25,8 @@ type AgentDelegation = {
 import LeftToolbar from './LeftToolbar';
 import SplitHandle from './SplitHandle';
 
-// Pane components (ChatPane removed in rah-light)
-import { NodePane, GuidesPane, DimensionsPane, MapPane, ViewsPane } from '../panes';
+// Pane components (ChatPane removed in rah-light, GuidesPane moved to settings)
+import { NodePane, DimensionsPane, MapPane, ViewsPane } from '../panes';
 import QuickAddInput from '../agents/QuickAddInput';
 import type { PaneType, SlotState, PaneAction } from '../panes/types';
 
@@ -47,6 +47,16 @@ export default function ThreePanelLayout() {
   // SlotB width as percentage (when open)
   const [slotBWidth, setSlotBWidth] = usePersistentState<number>('ui.slotBWidth', 50);
 
+  // Migration: if a slot was persisted with type 'guides' (now moved to settings), reset it
+  useEffect(() => {
+    if (slotA && (slotA.type as string) === 'guides') {
+      setSlotA({ type: 'views' });
+    }
+    if (slotB && (slotB.type as string) === 'guides') {
+      setSlotB(null);
+    }
+  }, []); // eslint-disable-line react-hooks/exhaustive-deps
+
   // Track which pane is active (last interacted with)
   const [activePane, setActivePane] = useState<'A' | 'B'>('A');
 
@@ -806,17 +816,7 @@ export default function ThreePanelLayout() {
         );
 
       // case 'chat' removed in rah-light
-
-      case 'guides':
-        return (
-          <GuidesPane
-            slot={slot}
-            isActive={isActive}
-            onPaneAction={slot === 'A' ? handleSlotAAction : handleSlotBAction}
-            onCollapse={onCollapse}
-            onSwapPanes={slotB ? handleSwapPanes : undefined}
-          />
-        );
+      // case 'guides' removed — moved to settings modal
 
       case 'dimensions':
         return (

src/components/panes/index.ts

@@ -1,5 +1,4 @@
 export { default as NodePane } from './NodePane';
-export { default as GuidesPane } from './GuidesPane';
 export { default as DimensionsPane } from './DimensionsPane';
 export { default as MapPane } from './MapPane';
 export { default as ViewsPane } from './ViewsPane';

src/components/panes/types.ts

@@ -14,8 +14,8 @@ export type AgentDelegation = {
   updatedAt: string;
 };
 
-// The five pane types (chat removed in rah-light)
-export type PaneType = 'node' | 'guides' | 'dimensions' | 'map' | 'views';
+// The four pane types (chat removed in rah-light, guides moved to settings)
+export type PaneType = 'node' | 'dimensions' | 'map' | 'views';
 
 // State for each slot
 export interface SlotState {
@@ -68,8 +68,6 @@ export interface HighlightedPassage {
 
 // ChatPaneProps removed in rah-light
 
-// GuidesPaneProps - just uses BasePaneProps (guides are self-contained)
-
 // DimensionsPane specific props
 export interface DimensionsPaneProps extends BasePaneProps {
   onNodeOpen: (nodeId: number) => void;
@@ -103,7 +101,6 @@ export interface PaneHeaderProps {
 // Labels for pane types
 export const PANE_LABELS: Record<PaneType, string> = {
   node: 'Nodes',
-  guides: 'Guides',
   dimensions: 'Dimensions',
   map: 'Map',
   views: 'Feed',
@@ -117,5 +114,5 @@ export const DEFAULT_SLOT_A: SlotState = {
 };
 
 export const DEFAULT_SLOT_B: SlotState = {
-  type: 'guides',
+  type: 'views',
 };