fix: KF6 config, kwin stub, docs, greeter, I2C/GPIO drivers, bootstrap

- KF6 config: enable 31 KF6 frameworks + kdecoration + kglobalacceld
  (was only kwin stub; 22 additional recipes now enabled)
- KWin: honest #TODO naming real blockers (Qt6::Sensors WIP,
  libinput ignored, no canberra); kwin_wayland shim delegates to
  redbear-compositor
- Greeter: enable redbear-greeterd replacing /usr/bin/true stub
- Mini config: suppress curl/git/mc (broken deps, not boot-critical)
- Docs: fix KF6 count (9->31 enabled), kwin status (stub, not real
  build), plasma blocked, config surface accuracy across
  CONSOLE-TO-KDE-DESKTOP-PLAN, DESKTOP-STACK-CURRENT-STATUS,
  local/AGENTS
- P2-i2c-gpio-ucsi-drivers.patch: 10 I2C/GPIO/UCSI daemon sources
  (gpiod, i2cd, dw-acpi-i2cd, intel-lpss-i2cd, i2c-gpio-expanderd,
  intel-gpiod, i2c-hidd, ucsid, i2c-interface, acpi-resource);
  amd-mp2-i2cd + intel-thc-hidd excluded (PCI API changed)
- P0-bootstrap-workspace-fix.patch: empty [workspace] in bootstrap
  Cargo.toml prevents auto-detection of parent workspace (fixes
  base-initfs from-scratch build)
- QEMU boot verified: kernel -> PCI -> NVMe -> ACPI -> display ->
  networking -> services -> RB_SERIAL_PROBE_OK

config/redbear-mini.toml

@@ -39,7 +39,7 @@ redbear-nmap = {}
 redbear-wifictl = {}
 
 # Diagnostics and shell-side utilities.
-mc = {}
+mc = "ignore"
 redbear-info = {}
 
 # Keep package builder utility in live environment.
@@ -75,11 +75,12 @@ iommu = {}
 # ── Standard CLI tools (from server profile) ──
 bash = {}
 bottom = {}
-curl = {}
+#curl = {}  # suppressed: nghttp2 dependency chain fails; curl not needed for boot/recovery
 diffutils = {}
 findutils = {}
-git = {}
+#git = {}  # suppressed: cascading rebuild; git not needed for boot/recovery
 htop = {}
+#mc = {}  # suppressed: C99 format warning errors in compilation
 
 # ── Build / packaging utilities ──
 patchelf = {}