fix: Change log file path to match entry point instead of node folder

[egorpavlikhin]

Change the location of the log file to be where the entry point file is located, instead of the current node active directory.

• Could this create an issue if the node process doesn't have write access to the folder? Seems unlikely and it should be okay to just fail in such cases.
• What happens if multiple processes try to use the MCP at the same time? Would that create a write conflict? Would not be a great experience but there is a workaround in that the log file path can be specified manually.

[Copilot]

Pull Request Overview

This PR changes the default log file location from the current working directory to the directory containing the entry point file. This ensures logs are consistently placed relative to the MCP server executable rather than the arbitrary working directory of the calling process.

• Updates logger configuration to use entry directory for log file placement
• Adds a new setEntryDirectory function to configure the logger with the entry point location
• Updates documentation to reflect the new default log file name

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
src/utils/logger.ts	Adds entry directory configuration and updates log file path resolution logic
src/index.ts	Sets the entry directory using ESM __dirname equivalent and updates CLI help text
README.md	Documents logging command line options and adds missing "type" field to config example

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[Copilot]

The logic falls back to the original behavior when config.entryDirectory is undefined, but this could result in using process.cwd() implicitly through the else clause. Consider explicitly handling the case when entryDirectory is not set to maintain predictable behavior.

Suggested change

	if (!filePath.includes('/') && !filePath.includes('\\') && config.entryDirectory) {
	config.logFilePath = path.join(config.entryDirectory, filePath);
	if (!filePath.includes('/') && !filePath.includes('\\')) {
	if (config.entryDirectory) {
	config.logFilePath = path.join(config.entryDirectory, filePath);
	} else {
	// Explicitly use process.cwd() if entryDirectory is not set
	config.logFilePath = path.join(process.cwd(), filePath);
	// Optionally, log a warning (if you have a logger, otherwise use console.warn)
	// console.warn(`[Logger] entryDirectory not set; using current working directory for log file: ${config.logFilePath}`);
	}

[Copilot]

This comparison will fail if setLogFilePath was called before setEntryDirectory with the default filename, because setLogFilePath would have already modified the path. Consider tracking whether the path has been explicitly set by the user separately from the actual path value.

[andrewabest]

Nice and simple, I like it.