fix: crates.io publish-blocking manifest gaps (pointcloud license, nvsim-server version req)

wifi-densepose-pointcloud's Cargo.toml had no license/authors/repository
fields at all (crates.io rejects a publish with "missing or empty
metadata fields: license") -- added the standard
authors.workspace/license.workspace/repository.workspace trio every
other crate in this workspace already uses.

nvsim-server's path dependency on nvsim had no version requirement
(crates.io rejects "all dependencies must have a version requirement
specified when publishing") -- pinned to nvsim = "0.3.1", the version
just published.

Found while publishing both crates for the first time; both now publish
cleanly (verified via cargo publish --dry-run before and after).

v2/crates/nvsim-server/Cargo.toml

@@ -14,7 +14,7 @@ name = "nvsim-server"
 path = "src/main.rs"
 
 [dependencies]
-nvsim = { path = "../nvsim" }
+nvsim = { path = "../nvsim", version = "0.3.1" }
 axum = { workspace = true }
 tokio = { workspace = true }
 tower = { workspace = true }

v2/crates/wifi-densepose-pointcloud/Cargo.toml

@@ -3,6 +3,9 @@ name = "wifi-densepose-pointcloud"
 version = "0.1.0"
 edition = "2021"
 description = "Real-time dense point cloud from camera depth + WiFi CSI tomography"
+authors.workspace = true
+license.workspace = true
+repository.workspace = true
 
 [[bin]]
 name = "ruview-pointcloud"