Revert "Merge pull request #48 from mantle-xyz/fix/validity-dockerfile-cargo-chef-cache"

This reverts commit 3a4293a, reversing
changes made to 3cb7101.

Author: byteflyfunny

validity/Dockerfile

@@ -1,16 +1,5 @@
-# Chef stage: shared base with cargo-chef installed
-FROM rust:1.85 AS chef
-RUN cargo install cargo-chef --locked
-WORKDIR /build
-
-# Planner stage: compute a dependency-only recipe from the workspace
-# Cargo.toml/Cargo.lock, independent of the rest of the source tree
-FROM chef AS planner
-COPY . .
-RUN cargo chef prepare --recipe-path recipe.json
-
 # Build stage
-FROM chef AS builder
+FROM rust:1.85 AS builder
 
 # Install build dependencies
 RUN apt-get update && apt-get install -y \
@@ -28,25 +17,21 @@ RUN curl -LO https://go.dev/dl/go1.24.0.linux-amd64.tar.gz && \
     rm go1.24.0.linux-amd64.tar.gz
 ENV PATH="/usr/local/go/bin:${PATH}"
 
+
+WORKDIR /build
+
 # Install SP1
 RUN curl -L https://sp1.succinct.xyz | bash && \
     ~/.sp1/bin/sp1up -v 6.4.0 && \
     ~/.sp1/bin/cargo-prove prove --version
 
-# Build only the dependency graph first, keyed on the recipe (Cargo.toml/Cargo.lock)
-# rather than the full source tree. As long as dependency versions don't change,
-# this layer is reused from the registry build cache and the sp1-*/gnark crates
-# don't get recompiled on every source change.
-COPY --from=planner /build/recipe.json recipe.json
-RUN --mount=type=ssh \
-    cargo chef cook --release --bin validity --bin clear-stuck-txs --recipe-path recipe.json
-
 # Copy only what's needed for the build
 COPY . .
 
-# Build the server. Dependencies are already compiled by the cook step above,
-# so this only (re)compiles the workspace's own crates that actually changed.
+# Build the server
 RUN --mount=type=ssh \
+    --mount=type=cache,target=/root/.cargo/registry \
+    --mount=type=cache,target=/build/target \
     cargo build --bin validity --bin clear-stuck-txs --release && \
     cp target/release/validity /build/validity-proposer && \
     cp target/release/clear-stuck-txs /build/clear-stuck-txs