fix: add serial getty and console activation services to init.d

Boot process now includes:
- 25_serial_getty.service: getty on serial console (visible in QEMU -nographic)
- 29_activate_console.service: inputd -A 2 (activate VT2)
- 30_console.service: getty on VT2 (framebuffer console)

Fixed hunk counts (7→8, 8→9) for correct patch application.
Services use 'oneshot_async' type for fire-and-forget startup.

ZSH is the default shell for all user accounts (base.toml, mini, full, greeter).

local/patches/base/P4-initfs-getty-services.patch

@@ -0,0 +1,33 @@
+--- a/init.d/25_serial_getty.service	1970-01-01 00:00:00.000000000 +0000
++++ b/init.d/25_serial_getty.service	2026-05-03 11:30:02.804864646 +0100
+@@ -0,0 +1,8 @@
++[unit]
++description = "Serial console getty"
++requires_weak = ["00_base.target"]
++
++[service]
++cmd = "getty"
++args = ["ttyS0"]
++type = "oneshot_async"
+--- a/init.d/29_activate_console.service	1970-01-01 00:00:00.000000000 +0000
++++ b/init.d/29_activate_console.service	2026-05-03 11:30:02.805544603 +0100
+@@ -0,0 +1,8 @@
++[unit]
++description = "Activate console VT"
++requires_weak = ["00_base.target"]
++
++[service]
++cmd = "inputd"
++args = ["-A", "2"]
++type = "oneshot_async"
+--- a/init.d/30_console.service	1970-01-01 00:00:00.000000000 +0000
++++ b/init.d/30_console.service	2026-05-03 11:30:02.806099127 +0100
+@@ -0,0 +1,8 @@
++[unit]
++description = "Console getty on VT2"
++requires_weak = ["29_activate_console.service"]
++
++[service]
++cmd = "getty"
++args = ["2"]
++type = "oneshot_async"

recipes/core/base/P4-initfs-getty-services.patch

@@ -0,0 +1 @@
+../../../local/patches/base/P4-initfs-getty-services.patch

recipes/core/base/recipe.toml

@@ -15,6 +15,7 @@ patches = [
     "P4-acpi-shutdown-hardening.patch",
     "P4-initfs-usb-drm-services.patch",
     "P4-initfs-network-services.patch",
+    "P4-initfs-getty-services.patch",
 ]
 
 [build]