fix: resolve remaining build failures

debian/rules: Source cargo env before calling cargo
  - Add `. "$HOME/.cargo/env"` to override_dh_auto_build

build-alpine.sh: Use /home/builduser for all paths
  - PKGDIR=/home/builduser/apk-package (accessible by builduser)
  - WORKSPACE_DIR=/home/builduser (for APKBUILD package function)
  - Removed duplicate else line

build-arch.sh: Copy repo to accessible directory
  - Copy repo contents to /home/builduser/repo before makepkg
  - Run makepkg in /home/builduser/repo (not act cache path)

build-alpine.sh

@@ -44,8 +44,8 @@ else
     echo "Skipping cargo build (SKIP_CARGO_BUILD is set)"
 fi
 
-# Create package directory
-PKGDIR=$(pwd)/apk-package
+# Create package directory in /home/builduser (accessible by builduser)
+PKGDIR=/home/builduser/apk-package
 mkdir -p "$PKGDIR"/usr/bin
 mkdir -p "$PKGDIR"/etc/linux_patch_api
 mkdir -p "$PKGDIR"/etc/init.d
@@ -57,8 +57,8 @@ cp configs/linux-patch-api-openrc "$PKGDIR"/etc/init.d/linux-patch-api
 chmod 755 "$PKGDIR"/etc/init.d/linux-patch-api
 cp configs/whitelist.yaml.example "$PKGDIR"/etc/linux_patch_api/whitelist.yaml
 
-# Determine workspace path for APKBUILD
-WORKSPACE_DIR=$(pwd)
+# Use /home/builduser as workspace for APKBUILD
+WORKSPACE_DIR=/home/builduser
 
 # Create APKBUILD
 echo "Creating APKBUILD..."
@@ -96,6 +96,11 @@ if [ "$(id -u)" = "0" ]; then
     adduser -D -s /bin/sh builduser 2>/dev/null || true
     addgroup builduser abuild 2>/dev/null || usermod -aG abuild builduser
     
+    # Copy repo contents to builduser home (accessible directory)
+    cp -r . /home/builduser/repo/
+    chown -R builduser:builduser /home/builduser/repo/
+    chown -R builduser:builduser /home/builduser/apk-package/
+    
     # Set up builduser home directory for abuild
     mkdir -p /home/builduser/.abuild
     cp /root/.abuild/* /home/builduser/.abuild/ 2>/dev/null || true

build-arch.sh

@@ -64,17 +64,25 @@ echo "Creating .SRCINFO..."
 # Build package
 echo "Building Arch package..."
 
-# For CI environments where we may run as root
 # For CI environments where we may run as root
 if [ "$(id -u)" = "0" ]; then
     echo "Running as root - creating build user for makepkg..."
     useradd -m builduser 2>/dev/null || true
-    chown -R builduser:builduser "$REPO_DIR"
-    su - builduser -c "cd $REPO_DIR && makepkg --printsrcinfo > .SRCINFO"
-    su - builduser -c "cd $REPO_DIR && makepkg -f --noconfirm"
+    
+    # Copy repo contents to builduser home (accessible directory)
+    mkdir -p /home/builduser/repo
+    cp -r . /home/builduser/repo/
+    chown -R builduser:builduser /home/builduser/repo/
+    
+    su - builduser -c "cd /home/builduser/repo && makepkg --printsrcinfo > .SRCINFO"
+    su - builduser -c "cd /home/builduser/repo && makepkg -f --noconfirm"
+    
+    # Copy package to releases
+    cp /home/builduser/repo/*.pkg.tar.zst releases/
 else
     makepkg --printsrcinfo > .SRCINFO
     makepkg -f --noconfirm
+    cp *.pkg.tar.zst releases/
 fi
 
 # Copy to releases directory

debian/rules

@@ -8,6 +8,7 @@ export DEB_CARGO_BUILD_FLAGS=--release
 	dh $@
 
 override_dh_auto_build:
+	. "$HOME/.cargo/env"
 	cargo build --release --target x86_64-unknown-linux-gnu
 
 override_dh_auto_install: