"enable for this file" command

while it's nice it's available for js, ts etc, it would also be useful when viewing log files and so on. one-time command seems like a better tradeoff than trying to guess the file formats

Start by locating the existing JavaScript and TypeScript handling and the command entry point for address hover actions. Define how the proposed one-time enable command should apply to log files or other formats, then verify that it works without requiring format detection. The issue names no files or tests, so the relevant implementation and validation steps still need to be identified.

Written by the indexing model from the issue text.