feat(core): Add support for building LLM applications (#7235)

This extracts all core and editor changes from #7246 and #7137, so that
we can get these changes merged first.

ADO-1120

[DB Tests](https://github.com/n8n-io/n8n/actions/runs/6379749011)
[E2E Tests](https://github.com/n8n-io/n8n/actions/runs/6379751480)
[Workflow Tests](https://github.com/n8n-io/n8n/actions/runs/6379752828)

---------

Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>
Co-authored-by: Oleg Ivaniv <me@olegivaniv.com>
Co-authored-by: Alex Grozav <alex@grozav.com>
Co-authored-by: कारतोफ्फेलस्क्रिप्ट™ <aditya@netroy.in>

packages/editor-ui/src/components/NDVDraggablePanels.vue

@@ -48,6 +48,7 @@ import PanelDragButton from './PanelDragButton.vue';
 import { LOCAL_STORAGE_MAIN_PANEL_RELATIVE_WIDTH, MAIN_NODE_PANEL_WIDTH } from '@/constants';
 import { debounceHelper } from '@/mixins/debounce';
 import { useNDVStore } from '@/stores/ndv.store';
+import { ndvEventBus } from '@/event-bus';
 
 const SIDE_MARGIN = 24;
 const SIDE_PANELS_MARGIN = 80;
@@ -118,9 +119,12 @@ export default defineComponent({
 		setTimeout(() => {
 			this.initialized = true;
 		}, 0);
+
+		ndvEventBus.on('setPositionByName', this.setPositionByName);
 	},
 	beforeUnmount() {
 		window.removeEventListener('resize', this.setTotalWidth);
+		ndvEventBus.off('setPositionByName', this.setPositionByName);
 	},
 	computed: {
 		...mapStores(useNDVStore),
@@ -287,7 +291,7 @@ export default defineComponent({
 					panelType: this.currentNodePaneType,
 					dimensions: {
 						relativeLeft: 1 - this.mainPanelDimensions.relativeWidth - this.maximumRightPosition,
-						relativeRight: this.maximumRightPosition as number,
+						relativeRight: this.maximumRightPosition,
 					},
 				});
 				return;
@@ -301,6 +305,15 @@ export default defineComponent({
 				},
 			});
 		},
+		setPositionByName(position: 'minLeft' | 'maxRight' | 'initial') {
+			const positionByName: Record<string, number> = {
+				minLeft: this.minimumLeftPosition,
+				maxRight: this.maximumRightPosition,
+				initial: this.getInitialLeftPosition(this.mainPanelDimensions.relativeWidth),
+			};
+
+			this.setPositions(positionByName[position]);
+		},
 		pxToRelativeWidth(px: number) {
 			return px / this.windowWidth;
 		},