wip: IPC and Runtime

Runtime/justfile

@@ -95,8 +95,22 @@ _default:
         exit 0
     fi
 
+    # libksOS MUST be built first — everyone depends on it
     for dir in "${projects[@]}"; do
         name=$(basename "${dir}")
+        if [ "${name}" = "libksOS" ]; then
+            echo ""
+            echo "  📦 ${CATEGORY}/${name}"
+            just --quiet _build_cmake "${dir}" "${CATEGORY}/${name}"
+            break
+        fi
+    done
+
+    for dir in "${projects[@]}"; do
+        name=$(basename "${dir}")
+        if [ "${name}" = "libksOS" ]; then
+            continue
+        fi
         echo ""
         echo "  📦 ${CATEGORY}/${name}"
 
@@ -111,6 +125,7 @@ _default:
 
 @build:
     @echo "🛠️ Building Runtime..."
+    @just --quiet clangd
     @mkdir -p {{ RUNTIME_BUILD_DIR }}/System
     @mkdir -p {{ RUNTIME_BUILD_DIR }}/Apps
     @just --quiet _discover_and_build System
@@ -122,3 +137,13 @@ _default:
     @rm -rf {{ TEMP_DIR }}/Runtime
     @rm -rf {{ RUNTIME_BUILD_DIR }}
     @echo "🧹 Runtime cleaned"
+
+@clangd:
+    #!/usr/bin/env bash
+    set -e
+    RUNTIME_DIR="{{ justfile_directory() }}"
+    INCLUDE_DIR="${RUNTIME_DIR}/System/libksOS/Include"
+
+    printf 'CompileFlags:\n  Add:\n    - -xc\n    - --target=aarch64-none-elf\n    - -ffreestanding\n    - -I%s\n' "${INCLUDE_DIR}" > "${RUNTIME_DIR}/.clangd"
+
+    echo "✅ Generated ${RUNTIME_DIR}/.clangd"