fix: convert MCP tool schemas from JSON Schema to Zod for SDK v1.29.0

The MCP SDK v1.29.0 changed server.tool() to require Zod schemas
(raw shapes) instead of plain JSON Schema objects. The old format
triggered "expected a Zod schema or ToolAnnotations" errors.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/server/mcp/tools/setups.ts

@@ -1,3 +1,4 @@
+import { z } from "zod";
 import type { db as prodDb } from "../../../db/index.ts";
 import {
 	createSetup,
@@ -28,31 +29,20 @@ export const setupToolDefinitions = [
 		name: "list_setups",
 		description:
 			"List all gear setups with item counts and weight/cost totals.",
-		inputSchema: {
-			type: "object" as const,
-			properties: {},
-		},
+		inputSchema: {},
 	},
 	{
 		name: "get_setup",
 		description: "Get a setup with all its items and details.",
 		inputSchema: {
-			type: "object" as const,
-			properties: {
-				id: { type: "number", description: "Setup ID" },
-			},
-			required: ["id"],
+			id: z.number().describe("Setup ID"),
 		},
 	},
 	{
 		name: "create_setup",
 		description: "Create a new gear setup (e.g. 'Bikepacking weekend').",
 		inputSchema: {
-			type: "object" as const,
-			properties: {
-				name: { type: "string", description: "Setup name" },
-			},
-			required: ["name"],
+			name: z.string().describe("Setup name"),
 		},
 	},
 	{
@@ -60,17 +50,12 @@ export const setupToolDefinitions = [
 		description:
 			"Update a setup's name and/or replace its item list. Pass itemIds to set exactly which items belong to this setup.",
 		inputSchema: {
-			type: "object" as const,
-			properties: {
-				id: { type: "number", description: "Setup ID" },
-				name: { type: "string", description: "New setup name" },
-				itemIds: {
-					type: "array",
-					items: { type: "number" },
-					description: "Array of item IDs to include in the setup",
-				},
-			},
-			required: ["id"],
+			id: z.number().describe("Setup ID"),
+			name: z.string().optional().describe("New setup name"),
+			itemIds: z
+				.array(z.number())
+				.optional()
+				.describe("Array of item IDs to include in the setup"),
 		},
 	},
 ];