Behavioural stealth: a click that teleports the cursor to an element's exact
centre with no approach path and zero press/release delay is a tell that
advanced anti-bot vendors (Akamai/PerimeterX/DataDome) flag, even though our CDP
events are isTrusted.
New `native::humanize` module — pure, unit-tested motion maths (cubic-Bézier
eased trajectories, in-bounds landing jitter, variable keystroke cadence, and an
anti-bot vendor detector) plus a small daemon-wide runtime (current level + last
cursor + per-action seed). `dispatch_click` now moves along a curved,
decelerating path from the last cursor position and dwells before releasing.
Three levels off|fast|human. Default is Off → byte-for-byte the old teleport, so
nothing changes until opted in. `AGENT_BROWSER_HUMANIZE=human` forces it now;
the adaptive per-navigation detector (set_detected_level) and type/wheel/drag
coverage land next. 8/8 unit tests; fmt + clippy clean.
leeguooooo
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