Changelog

0.3.2

First public release.

Momentum after a release no longer has a time limit. It lasts until you touch ground or water, take a hit, or slow below running speed (for example, by hitting a wall). Removed Inertia.DurationSeconds.
The grapple jump window stays open after an automatic release at the anchor. Before this, a jump could be lost when the anchor was close.
New Pull.JumpMultiplier (default 1.5) sets the strength of the grapple jump.
With a ground-level anchor, the pull no longer cancels a rising jump. Gravity bends the arc.
With Diagnostics.DebugTransitions on, each grapple is traced: jump accepted or rejected (with the reason), plus height and speed every 0.1 s for 2 s.

The rope only applies when the anchor is above you. Ground-level anchors give a straight pull, which makes grapple-jump arcs possible.
The pull aims 0.6 m above the anchor.
If you fly past a ground-level anchor and move away from it, the hook releases and you keep your momentum instead of being pulled back.
Grapple jump window: 0.5 s after a ground attach (Pull.JumpWindowSeconds).
Hit sparks appear on attach, and the rope tip glows gold while the jump window is open.

The vanilla reload is replaced by a 0.2 s cooldown (General.CooldownSeconds), shared between both fire buttons. It also works while attached.
Off-hand fire (Offhand.Key, Mouse4 by default) shoots the hook from your inventory without equipping it.
Attacking or switching weapons no longer releases the hook. Dropping the hook does.
Crosshair range dot: blue if a shot would latch, grey if it wouldn't.

Progressive pull: initial impulse, 0.2 s delay and a 1.5 s ramp, tuned for Valheim.
Rope swing with tangential air control. Looking away from the anchor reduces the pull.
Grapple jump from the ground, once per hook.
Block releases the hook and keeps your momentum. Reaching the anchor also releases it.
Configurable stamina cost per shot (default 5). Jumps keep their vanilla cost.
Optional fall-damage grace after a release (off by default).