Device info endpoint + richer node summaries (GET /api/device, MCP device_info) (#13)

src/mesh/mcp.controller.spec.ts

@@ -64,13 +64,14 @@ async function connectMcp(svc: MeshService): Promise<{
 }
 
 describe('MCP server tools', () => {
-  it('lists all six tools with descriptions and input schemas', async () => {
+  it('lists all seven tools with descriptions and input schemas', async () => {
     const env = await connectedService();
     try {
       const mcp = await connectMcp(env.svc);
       try {
         const { tools } = await mcp.client.listTools();
         expect(tools.map((t) => t.name).sort()).toEqual([
+          'device_info',
           'get_messages',
           'get_node',
           'list_channels',
@@ -215,7 +216,7 @@ describe('MCP server tools', () => {
     }
   });
 
-  it('list_channels, list_nodes and get_messages return the service data', async () => {
+  it('list_channels, list_nodes, get_messages and device_info return the service data', async () => {
     const env = await connectedService();
     try {
       env.sockets[0].write(nodeInfoFrame(KAMIL_NUM, kamilNodeInfo()));
@@ -234,6 +235,15 @@ describe('MCP server tools', () => {
           ),
         ).toEqual([]); // no channel frames fed yet
 
+        // no metadata/config frames fed yet → empty sections, null node num
+        expect(
+          JSON.parse(
+            toolText(
+              await mcp.client.callTool({ name: 'device_info', arguments: {} }),
+            ),
+          ),
+        ).toEqual({ myNodeNum: null, localConfig: {}, moduleConfig: {} });
+
         const nodes = JSON.parse(
           toolText(
             await mcp.client.callTool({ name: 'list_nodes', arguments: {} }),