feat(logging): Wave 1 - logging infrastructure complete

- Add logging config to config.yaml with level, auditRetention, appRetention
- Add 4 global exception handlers (uncaughtException, unhandledRejection, render-process-gone, child-process-gone)
- Create audit-logger.ts with JSONL format and 30-day rotation
- Define IPC logger channels (LOGGER_FORWARD) and preload API
- Define audit types (AuditAction enum, AuditEntry interface, AuditStatus enum)
- Add unit tests for audit logger

All typechecks passing. Wave 1 complete.

src/main/services/logger/index.ts

@@ -52,9 +52,9 @@ const createFileTransport = (level?: string): DailyRotateFile => {
   })
 }
 
-// Create the logger instance
+// Create the logger instance with default level
 const logger = winston.createLogger({
-  level: 'info', // Log level is now hardcoded, can be moved to config.yaml if needed
+  level: 'info', // Default level, can be updated via setLogLevel()
   defaultMeta: { service: 'erpauto' },
   transports: [
     // Console transport - always enabled
@@ -66,6 +66,14 @@ const logger = winston.createLogger({
   ]
 })
 
+/**
+ * Update the logger level dynamically
+ * @param level - The new log level
+ */
+export function setLogLevel(level: string): void {
+  logger.level = level
+}
+
 // Add error-specific file transport in production
 if (app.isPackaged) {
   logger.add(