fix: update search flow - first tool search

web/src/lib/components/ToolPage.svelte

@@ -364,7 +364,7 @@
 						✕
 					</button>
 				</header>
-					<ToolSearch onSelect={(id) => applyChainTool(index, id)} />
+					<ToolSearch onSelect={(id) => applyChainTool(index, id)} chainableOnly />
 				</div>
 			{:else if getTool(step.toolId)}
 				{@const stepTool = getTool(step.toolId)!}

web/src/lib/components/search/ToolSearch.svelte

@@ -9,11 +9,13 @@
 
 	interface Props {
 		onSelect: (toolId: string) => void;
+		/** true — только инструменты, пригодные в шаг цепочки (слот добавления шага). */
+		chainableOnly?: boolean;
 	}
 
-	let { onSelect }: Props = $props();
+	let { onSelect, chainableOnly = false }: Props = $props();
 
-	const candidates = TOOLS.filter(isChainable);
+	const candidates = chainableOnly ? TOOLS.filter(isChainable) : TOOLS;
 
 	let query = $state('');
 	let activeIndex = $state(0);