feat(bootstrap): add tool_call hook to set vibes for tools

- registers hook to trigger vibe state based on tool name and input
- enables working-vibes extension to respond to tool invocations

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

src/resources/extensions/sf/bootstrap/register-hooks.ts

@@ -463,6 +463,10 @@ export function registerHooks(pi: ExtensionAPI): void {
     return payload;
   });
 
+  pi.on("tool_call", async (event, ctx: ExtensionContext) => {
+    setVibeForTool(ctx, event.toolName, event.input);
+  });
+
   // Capability-aware model routing hook (ADR-004)
   // Extensions can override model selection by returning { modelId: "..." }
   // Return undefined to let the built-in capability scoring proceed.