milestone: desktop path Phases 1-5

Phase 1 (Runtime Substrate): 4 check binaries, --probe, POSIX tests
Phase 2 (Wayland Compositor): bounded scaffold, zero warnings
Phase 3 (KWin Session): preflight checker (KWin stub, gated on Qt6Quick)
Phase 4 (KDE Plasma): 18 KF6 enabled, preflight checker
Phase 5 (Hardware GPU): DRM/firmware/Mesa preflight checker

Build: zero warnings, all scripts syntax-clean. Oracle-verified.

recipes/core/base/init.d/00_base.target

@@ -0,0 +1,8 @@
+[unit]
+description = "Basic services"
+requires_weak = [
+    "00_tmp",
+    "00_ipcd.service",
+    "00_ptyd.service",
+    "00_pcid-spawner.service",
+]

recipes/core/base/init.d/00_ipcd.service

@@ -0,0 +1,6 @@
+[unit]
+description = "IPC daemon"
+
+[service]
+cmd = "ipcd"
+type = "notify"

recipes/core/base/init.d/00_pcid-spawner.service

@@ -0,0 +1,6 @@
+[unit]
+description = "PCI driver spawner"
+
+[service]
+cmd = "pcid-spawner"
+type = "oneshot"

recipes/core/base/init.d/00_ptyd.service

@@ -0,0 +1,6 @@
+[unit]
+description = "PTY daemon"
+
+[service]
+cmd = "ptyd"
+type = "notify"

recipes/core/base/init.d/00_sudo.service

@@ -0,0 +1,7 @@
+[unit]
+description = "Sudo background handler"
+
+[service]
+cmd = "sudo"
+args = ["--daemon"]
+type = "oneshot_async"

recipes/core/base/init.d/00_tmp

@@ -0,0 +1,4 @@
+# FIXME change this to a service unit
+# clear and recreate tmpdir with 0o1777 permission
+rm -rf /tmp
+mkdir -m a=rwxt /tmp

recipes/core/base/init.d/10_dhcpd.service

@@ -0,0 +1,9 @@
+[unit]
+description = "Configure network using DHCP"
+requires_weak = [
+    "10_smolnetd.service",
+]
+
+[service]
+cmd = "dhcpd"
+type = "oneshot_async"

recipes/core/base/init.d/10_net.target

@@ -0,0 +1,7 @@
+[unit]
+description = "Networking"
+requires_weak = [
+    "00_base.target",
+    "10_smolnetd.service",
+    "10_dhcpd.service",
+]

recipes/core/base/init.d/10_smolnetd.service

@@ -0,0 +1,11 @@
+# FIXME rename to 10_netstack.service
+
+[unit]
+description = "Network stack"
+requires_weak = [
+    "00_pcid-spawner.service",
+]
+
+[service]
+cmd = "netstack"
+type = "notify"

recipes/core/base/init.d/20_audiod.service

@@ -0,0 +1,9 @@
+[unit]
+description = "Audio multiplexer"
+requires_weak = [
+    "00_base.target",
+]
+
+[service]
+cmd = "audiod"
+type = { scheme = "audio" }