Adds ad-skip.mjs: connects over CDP and injects a watcher into every tab
(current and future) that clicks "Skip ad" the moment it appears, closes overlay
ads, and fast-forwards unskippable ads (seek-to-end + 16x + mute) so they clear
in ~1s. Self-contained (no extension, no hosts/network changes) and reconnects
across Chrome restarts. Documented in the README.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>