fix: mcp command accepts --project directly for Claude spawned processes

The mcp subcommand now has its own -p/--project option with
passThroughOptions(), so `mcpctl mcp --project NAME` works when Claude
spawns the process. Updated config claude to generate
args: ['mcp', '--project', project] and added Commander-level tests.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/cli/tests/commands/claude.test.ts

@@ -45,7 +45,7 @@ describe('config claude', () => {
     const written = JSON.parse(readFileSync(outPath, 'utf-8'));
     expect(written.mcpServers['homeautomation']).toEqual({
       command: 'mcpctl',
-      args: ['mcp', '-p', 'homeautomation'],
+      args: ['mcp', '--project', 'homeautomation'],
     });
     expect(output.join('\n')).toContain('1 server(s)');
   });
@@ -60,7 +60,7 @@ describe('config claude', () => {
     const parsed = JSON.parse(output[0]);
     expect(parsed.mcpServers['myproj']).toEqual({
       command: 'mcpctl',
-      args: ['mcp', '-p', 'myproj'],
+      args: ['mcp', '--project', 'myproj'],
     });
   });
 
@@ -80,7 +80,7 @@ describe('config claude', () => {
     expect(written.mcpServers['existing--server']).toBeDefined();
     expect(written.mcpServers['proj-1']).toEqual({
       command: 'mcpctl',
-      args: ['mcp', '-p', 'proj-1'],
+      args: ['mcp', '--project', 'proj-1'],
     });
     expect(output.join('\n')).toContain('2 server(s)');
   });
@@ -96,7 +96,7 @@ describe('config claude', () => {
     const written = JSON.parse(readFileSync(outPath, 'utf-8'));
     expect(written.mcpServers['proj-1']).toEqual({
       command: 'mcpctl',
-      args: ['mcp', '-p', 'proj-1'],
+      args: ['mcp', '--project', 'proj-1'],
     });
   });
 

src/cli/tests/commands/mcp.test.ts

@@ -1,7 +1,7 @@
 import { describe, it, expect, beforeAll, afterAll } from 'vitest';
 import http from 'node:http';
 import { Readable, Writable } from 'node:stream';
-import { runMcpBridge } from '../../src/commands/mcp.js';
+import { runMcpBridge, createMcpCommand } from '../../src/commands/mcp.js';
 
 // ---- Mock MCP server (simulates mcplocal project endpoint) ----
 
@@ -412,3 +412,40 @@ describe('MCP STDIO Bridge', () => {
     expect(post?.url).toBe('/projects/my%20project/mcp');
   });
 });
+
+describe('createMcpCommand', () => {
+  it('accepts --project option directly', () => {
+    const cmd = createMcpCommand({
+      getProject: () => undefined,
+      configLoader: () => ({ mcplocalUrl: 'http://localhost:3200' }),
+      credentialsLoader: () => null,
+    });
+    const opt = cmd.options.find((o) => o.long === '--project');
+    expect(opt).toBeDefined();
+    expect(opt!.short).toBe('-p');
+  });
+
+  it('parses --project from command args', async () => {
+    let capturedProject: string | undefined;
+    const cmd = createMcpCommand({
+      getProject: () => undefined,
+      configLoader: () => ({ mcplocalUrl: `http://localhost:${mockPort}` }),
+      credentialsLoader: () => null,
+    });
+    // Override the action to capture what project was parsed
+    // We test by checking the option parsing works, not by running the full bridge
+    const parsed = cmd.parse(['--project', 'test-proj'], { from: 'user' });
+    capturedProject = parsed.opts().project;
+    expect(capturedProject).toBe('test-proj');
+  });
+
+  it('parses -p shorthand from command args', () => {
+    const cmd = createMcpCommand({
+      getProject: () => undefined,
+      configLoader: () => ({ mcplocalUrl: `http://localhost:${mockPort}` }),
+      credentialsLoader: () => null,
+    });
+    const parsed = cmd.parse(['-p', 'my-project'], { from: 'user' });
+    expect(parsed.opts().project).toBe('my-project');
+  });
+});