ix init script duplication and CPIO creation issues

- Remove duplicate /sbin/init copying from initramfs_setup_zinit()
- Only /init should be config/init (initramfs setup script)
- No /sbin/init needed - config/init calls 'switch_root /mnt/root /sbin/zinit init'
- Remove unsupported cpio --owner option that broke CPIO creation
- Fix validation to not expect /sbin/init file
- Correct boot flow: /init → switch_root → /sbin/zinit init
- Remove strip and UPX compression from zinit binary copying
- UPX compression was corrupting the zinit binary causing segfaults after switch_root
- Keep zinit unmodified as it's

.build-stages/alpine_configure.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="alpine_configure"
+COMPLETED_AT="2025-09-05T08:50:10+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 0s, Function: stage_alpine_configure"

.build-stages/alpine_extract.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="alpine_extract"
+COMPLETED_AT="2025-09-05T08:50:10+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 0s, Function: stage_alpine_extract"

.build-stages/alpine_firmware.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="alpine_firmware"
+COMPLETED_AT="2025-09-05T08:50:17+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 3s, Function: stage_alpine_firmware"

.build-stages/alpine_packages.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="alpine_packages"
+COMPLETED_AT="2025-09-05T08:50:14+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 4s, Function: stage_alpine_packages"

.build-stages/boot_tests.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="boot_tests"
+COMPLETED_AT="2025-09-05T09:00:10+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 0s, Function: stage_boot_tests"

.build-stages/cleanup.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="cleanup"
+COMPLETED_AT="2025-09-05T09:35:22+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 0s, Function: stage_cleanup"

.build-stages/components_build.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="components_build"
+COMPLETED_AT="2025-09-05T08:52:40+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 143s, Function: stage_components_build"

.build-stages/components_copy.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="components_copy"
+COMPLETED_AT="2025-09-05T09:35:21+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 82s, Function: stage_components_copy"

.build-stages/components_verify.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="components_verify"
+COMPLETED_AT="2025-09-05T08:52:40+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 0s, Function: stage_components_verify"

.build-stages/init_script.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="init_script"
+COMPLETED_AT="2025-09-05T09:33:59+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 0s, Function: stage_init_script"

.build-stages/initramfs_create.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="initramfs_create"
+COMPLETED_AT="2025-09-05T09:35:47+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 25s, Function: stage_initramfs_create"

.build-stages/initramfs_test.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="initramfs_test"
+COMPLETED_AT="2025-09-05T09:35:48+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 1s, Function: stage_initramfs_test"

.build-stages/kernel_build.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="kernel_build"
+COMPLETED_AT="2025-09-05T09:36:19+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 31s, Function: stage_kernel_build"

.build-stages/kernel_modules.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="kernel_modules"
+COMPLETED_AT="2025-09-05T08:57:54+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 314s, Function: stage_kernel_modules"

.build-stages/modules_copy.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="modules_copy"
+COMPLETED_AT="2025-09-05T09:35:22+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 0s, Function: stage_modules_copy"

.build-stages/modules_setup.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="modules_setup"
+COMPLETED_AT="2025-09-05T09:35:22+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 1s, Function: stage_modules_setup"

.build-stages/validation.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="validation"
+COMPLETED_AT="2025-09-05T09:35:22+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 0s, Function: stage_validation"

.build-stages/zinit_setup.done

@@ -0,0 +1,5 @@
+# Stage completion marker
+STAGE_NAME="zinit_setup"
+COMPLETED_AT="2025-09-05T09:35:21+00:00"
+COMPLETED_BY="root"
+DETAILS="Duration: 0s, Function: stage_zinit_setup"