chore: extract utils folder (#876)

src/mcp/DEPS.list

@@ -1,7 +1,2 @@
 [*]
-../log.js
-../manualPromise.js
-../httpServer.js
-
-[proxyBackend.ts]
-../package.js
+../utils/

src/mcp/proxyBackend.ts

@@ -18,8 +18,8 @@ import { Server } from '@modelcontextprotocol/sdk/server/index.js';
 import { z } from 'zod';
 import { zodToJsonSchema } from 'zod-to-json-schema';
 
-import { logUnhandledError } from '../log.js';
-import { packageJSON } from '../package.js';
+import { logUnhandledError } from '../utils/log.js';
+import { packageJSON } from '../utils/package.js';
 import { ToolDefinition, ServerBackend, ToolResponse } from './server.js';
 
 import type { Client } from '@modelcontextprotocol/sdk/client/index.js';

src/mcp/server.ts

@@ -17,8 +17,8 @@
 import debug from 'debug';
 import { Server } from '@modelcontextprotocol/sdk/server/index.js';
 import { CallToolRequestSchema, ListToolsRequestSchema } from '@modelcontextprotocol/sdk/types.js';
-import { ManualPromise } from '../manualPromise.js';
-import { logUnhandledError } from '../log.js';
+import { ManualPromise } from '../utils/manualPromise.js';
+import { logUnhandledError } from '../utils/log.js';
 
 import type { ImageContent, TextContent, Tool } from '@modelcontextprotocol/sdk/types.js';
 import type { Transport } from '@modelcontextprotocol/sdk/shared/transport.js';

src/mcp/transport.ts

@@ -21,7 +21,7 @@ import debug from 'debug';
 import { SSEServerTransport } from '@modelcontextprotocol/sdk/server/sse.js';
 import { StreamableHTTPServerTransport } from '@modelcontextprotocol/sdk/server/streamableHttp.js';
 import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
-import { httpAddressToString, startHttpServer } from '../httpServer.js';
+import { httpAddressToString, startHttpServer } from '../utils/httpServer.js';
 import * as mcpServer from './server.js';
 
 import type { ServerBackendFactory } from './server.js';