chore: bump workspace to v0.3.0 and publish 15 crates to crates.io

- Workspace version: 0.2.0 → 0.3.0
- All internal path dependency versions updated
- ruvector-crv/gnn gated behind optional `crv` feature (removed [patch.crates-io])
- All 15 crates published to crates.io at v0.3.0

Published crates (in order):
  1. wifi-densepose-core
  2. wifi-densepose-vitals
  3. wifi-densepose-wifiscan
  4. wifi-densepose-hardware
  5. wifi-densepose-config
  6. wifi-densepose-db
  7. wifi-densepose-signal
  8. wifi-densepose-nn
  9. wifi-densepose-ruvector
  10. wifi-densepose-api
  11. wifi-densepose-train
  12. wifi-densepose-mat
  13. wifi-densepose-wasm
  14. wifi-densepose-sensing-server
  15. wifi-densepose-cli

Co-Authored-By: claude-flow <ruv@ruv.net>

rust-port/wifi-densepose-rs/crates/wifi-densepose-ruvector/Cargo.toml

@@ -10,17 +10,21 @@ keywords = ["wifi", "csi", "ruvector", "signal-processing", "disaster-detection"
 categories = ["science", "computer-vision"]
 readme = "README.md"
 
+[features]
+default = []
+crv = ["dep:ruvector-crv", "dep:ruvector-gnn", "dep:serde", "dep:serde_json"]
+
 [dependencies]
 ruvector-mincut = { workspace = true }
 ruvector-attn-mincut = { workspace = true }
 ruvector-temporal-tensor = { workspace = true }
 ruvector-solver = { workspace = true }
 ruvector-attention = { workspace = true }
-ruvector-crv = { workspace = true }
-ruvector-gnn = { workspace = true }
+ruvector-crv = { workspace = true, optional = true }
+ruvector-gnn = { workspace = true, optional = true }
 thiserror = { workspace = true }
-serde = { workspace = true }
-serde_json = { workspace = true }
+serde = { workspace = true, optional = true }
+serde_json = { workspace = true, optional = true }
 
 [dev-dependencies]
 approx = "0.5"