chore: establish development baseline

crates/bat-ffi/Cargo.toml

@@ -0,0 +1,24 @@
+[package]
+name = "bat-ffi"
+version.workspace = true
+edition.workspace = true
+authors.workspace = true
+license.workspace = true
+
+[lib]
+crate-type = ["cdylib", "staticlib"]
+
+[dependencies]
+bat-cas-engine = { path = "../bat-cas-engine" }
+bat-assetbundle = { path = "../bat-assetbundle" }
+bat-patch = { path = "../bat-patch" }
+
+anyhow.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+
+# FFI 绑定
+libc = "0.2"
+
+[build-dependencies]
+cbindgen = "0.27"