refactor: update logger service integration across the application

[omdxp]

• Renamed logger variable to loggerService for consistency.
• Updated logging calls to use the new loggerService structure.
• Replaced winston with @omdxp/jslog for improved logging capabilities.
• Added graceful shutdown handling for logger file streams.
• Enhanced log messages with additional context and structured attributes.

[Copilot]

Pull Request Overview

This PR refactors the application's logging infrastructure by replacing the winston logging library with @omdxp/jslog. The changes rename logger references to loggerService for consistency and update all logging call patterns to use the new library's API. The new implementation includes environment-specific configurations (pretty console output for development, JSON file logging for production) and adds graceful shutdown handling for logger file streams.

• Replaced winston with @omdxp/jslog (version 1.7.1)
• Standardized logger variable naming to loggerService across all services
• Enhanced logging with structured attributes using key-value pairs instead of object-based messages

Reviewed Changes

Copilot reviewed 9 out of 11 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
package.json	Added @omdxp/jslog dependency and removed winston
package-lock.json	Updated dependency lockfile with @omdxp/jslog and removed winston-related packages
api/src/logger/service.ts	Completely rewrote logger service to use @omdxp/jslog with environment-specific handlers and file stream management
api/src/app/index.ts	Added graceful shutdown handlers for SIGTERM/SIGINT signals to close logger file streams
api/src/app/middlewares/logger.ts	Updated HTTP logging middleware to use new logger API with structured request/response attributes
api/src/search/service.ts	Updated logger variable name and logging calls to use new structured format
api/src/postgres/service.ts	Updated logging calls to use new loggerService.logger.info() pattern
api/src/fetch/service.ts	Updated logger variable name and logging calls with structured attributes
api/src/digest/cron.ts	Updated logger variable name and logging calls throughout the cron job
api/src/ai/service.ts	Updated logger variable name and logging call
.gitignore	Added api/logs directory to ignore list for log files

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