feat: GPUI desktop port foundation

- scene crate: full project/scene/element model, serde round-trip
  proven against the web SerializedProject shape
- transfer crate: .ocp zip container, cross-compat with web fflate
  archives proven in both directions
- storage crate: filesystem project store replacing IndexedDB,
  .ocp import/export
- media crate: ffmpeg-next 8 decoder (frames, audio, thumbnails,
  waveform summaries)
- playback crate: wall-clock anchored, frame-rounded playback clock
- gpu crate: native texture readback; compositor renders headless
  offscreen on Vulkan (spike test)
- flake devshell: rust toolchain, GPUI native deps, ffmpeg dev,
  bindgen clang args; GPUI hello-world builds
- port plan in notes/gpui-port.md

1 files changed, 16 insertions, 0 deletions

diff --git a/rust/crates/storage/Cargo.toml b/rust/crates/storage/Cargo.toml
new file mode 100644
index 00000000..2ac5f67a
--- /dev/null
+++ b/rust/crates/storage/Cargo.toml
@@ -0,0 +1,16 @@
+[package]
+name = "storage"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+scene = { version = "0.1.0", path = "../scene" }
+transfer = { version = "0.1.0", path = "../transfer" }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+thiserror = "2"
+
+[dev-dependencies]
+tempfile = "3"
+chrono = { version = "0.4", features = ["serde"] }
+time = { version = "0.1.0", path = "../time" }