v0.3.3

v0.3.3 — node-free Pilgrim entry

New CupriNet.Shrine package: `Pilgrimage.OverVesselAsync` runs the Pilgrim
half of a Shrine visit (Toll, Noise pinning the Signet, then the Oracle and
Auspice rites over one vessel) without a `CupriNode`, and without referencing
anything that binds a socket — so it works from a browser WebAssembly build,
a fetch-only CLI, a test with no overlay, or an embedded host with no listener.

`CupriNode.PilgrimageOverVesselAsync` is unchanged and delegates to it.
`ShrineSession` moved to the new package keeping namespace CupriNet.Hosting,
with a TypeForwardedTo from CupriNet.Hosting, so both source and binary
references built against 0.3.2 keep resolving.

Closes #1