Add overlay filesystem support and update zinit configuration

- Added overlay.ko module installation for container support in install-firmware-minimal.sh
- Added udevmon service for hardware event monitoring
- Updated udev-trigger dependency to include udevmon
- Added placeholder configurations for mycelium and shm services

scripts/install-firmware-minimal.sh

@@ -127,8 +127,12 @@ if [ -d "$KERNEL_BUILD_DIR" ]; then
     find "$KERNEL_BUILD_DIR" -name "mdio.ko" -exec cp {} "$MODULES_DIR/kernel/drivers/net/" \; 2>/dev/null || true
     find "$KERNEL_BUILD_DIR" -name "libphy.ko" -exec cp {} "$MODULES_DIR/kernel/drivers/net/" \; 2>/dev/null || true
     
+    # Filesystem drivers (overlay for container support)
+    find "$KERNEL_BUILD_DIR" -name "overlay.ko" -exec cp {} "$MODULES_DIR/kernel/fs/" \; 2>/dev/null || true
+    
     # Create modules directories
     mkdir -p "$MODULES_DIR/kernel/drivers"
+    mkdir -p "$MODULES_DIR/kernel/fs"
     
     # Create modules.dep and modules.alias for module loading
     echo "    Creating module dependency files..."