allow env variables expansion in config files

Sources/phbar/Models/PHBlock/PHBlock+Refresh.swift

@@ -82,6 +82,7 @@ extension PHBlock {
 		guard kind == .text else { return nil }
 
 		let command = command
+		let environment = self.environment
 
 		let lines: [Substring]? = await Task.detached(priority: .userInitiated) {
 			let process = Process()
@@ -92,8 +93,9 @@ extension PHBlock {
 			process.executableURL = URL(fileURLWithPath: "/bin/bash")
 			process.arguments = ["-c", command]
 
-			// Inherit the parent's environment (includes $PATH, etc.)
-			process.environment = ProcessInfo.processInfo.environment
+			// Scripts inherit phbar's process environment with the `[env]` section
+			// overlaid, so user-defined variables and PATH extensions are visible.
+			process.environment = environment.variables
 			if let gestureEvent {
 				let type = gestureEvent.type.rawValue
 				process.environment?.updateValue(type, forKey: PHGestureEvent.typeKey)