changes

src-tauri/stubs/burn-cuda/Cargo.toml

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+# Empty stand-in for `burn-cuda`, used via [patch.crates-io] in ../../Cargo.toml.
+# harper-core pulls burn-cuda only as an optional, disabled CUDA backend. This stub keeps
+# the broken/heavy cubecl + tracel-llvm subtree out of the dependency graph. Never compiled.
+# The feature names below must match the ones `burn` references via `burn-cuda?/...` so that
+# Cargo's feature validation passes; they are all empty no-ops.
+[package]
+name = "burn-cuda"
+version = "0.19.1"
+edition = "2021"
+publish = false
+
+[lib]
+path = "src/lib.rs"
+
+[features]
+default = []
+std = []
+doc = []
+fusion = []
+autotune = []
+autotune-checks = []

src-tauri/stubs/burn-cuda/src/lib.rs

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+// Intentionally empty. See Cargo.toml — this stubs out the disabled `burn-cuda` backend.

src-tauri/stubs/cubecl-cpu/Cargo.toml

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+# Empty stand-in for `cubecl-cpu`, used via [patch.crates-io] in ../../Cargo.toml.
+# cubecl-cpu is the LLVM/MLIR JIT CPU runtime pulled (transitively, through burn's disabled GPU
+# backends) by harper-core. It drags in the tracel-llvm / tracel-llvm-bundler crates, whose
+# current prereleases fail to resolve and link-collide with `zip`'s lzma. Replacing it with this
+# empty stub removes that whole subtree. Nothing here is ever compiled (GPU backends are off).
+[package]
+name = "cubecl-cpu"
+version = "0.8.1"
+edition = "2021"
+publish = false
+
+[lib]
+path = "src/lib.rs"
+
+[features]
+default = []

src-tauri/stubs/cubecl-cpu/src/lib.rs

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+// Intentionally empty. See Cargo.toml — this stubs out the disabled cubecl-cpu JIT runtime.