add dockerignore

.dockerignore

@@ -0,0 +1,22 @@
+# Exclude everything by default
+*
+
+# Cargo manifest & lockfile
+!Cargo.toml
+!Cargo.lock
+
+# Rust toolchain
+!rust-toolchain.toml
+
+# Source code
+!src/
+!src/**
+
+# Patched crates ([replace] in Cargo.toml)
+!patches/
+!patches/**
+
+# Cargo requires [[bench]] and [[test]] sources to exist at manifest parse time
+!benches/
+!benches/**
+!tests/bdd/main.rs

.github/workflows/docker-build.yml

@@ -0,0 +1,10 @@
+jobs:
+  build:
+    name: Verify Docker Build
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Build Docker image (builder stage only)
+        run: docker build --target builder .