docs: Update Corne-ish Zen mentions for Zephyr 4.1 upgrade renames (#3143)

* docs: Fix mentions of Corne-ish Zen for HWMv2 change

* blog: Add Corne-ish Zen to renamed boards in Zephyr 4.1

Author: caksoylar

docs/blog/2025-12-09-zephyr-4-1.md

@@ -91,6 +91,11 @@ As part of this change, ZMK is now using board/shield revisions, rather than dup
   - `bdn9_rev2` -> `bdn9`
 - Ferris Rev2 (`ferris`)
   - `ferris_rev02` -> `ferris@2.0.0` (short: `ferris`)
+- Corne-ish Zen (`corneish_zen`)
+  - `corneish_zen_v2_left` -> `corneish_zen_left@2.0.0` (short: `corneish_zen_left`)
+  - `corneish_zen_v2_right` -> `corneish_zen_right@2.0.0` (short: `corneish_zen_right`)
+  - `corneish_zen_v1_left` -> `corneish_zen_left@1.0.0` (short: `corneish_zen_left@1`)
+  - `corneish_zen_v1_right` -> `corneish_zen_right@1.0.0` (short: `corneish_zen_right@1`)
 
 The boards above are those which have changed in ZMK's tree, with the addition of the very popular XIAO series. For other boards in Zephyr's tree, please refer to the Zephyr documentation or source files directly.
 

docs/docs/troubleshooting/building-issues.md

@@ -77,7 +77,7 @@ If you are building locally, this file can be found inside the build folder at `
 Additionally, the build command (in "West Build (`<keyboard>`)" step in GitHub Actions) logs what configuration files were found and used in the build:
 
 ```
-+ west build -s zmk/app -d /tmp/tmp.8cJefinXCb -b corneish_zen_v2_left -- -DZMK_CONFIG=/tmp/zmk-config/config -DZMK_EXTRA_MODULES=/__w/zmk-config/zmk-config
++ west build -s zmk/app -d /tmp/tmp.8cJefinXCb -b corneish_zen_left@2 -- -DZMK_CONFIG=/tmp/zmk-config/config -DZMK_EXTRA_MODULES=/__w/zmk-config/zmk-config
 ...
 -- ZMK Config Kconfig: /tmp/zmk-config/config/corneish_zen.conf
 ...
@@ -98,9 +98,10 @@ If you are building locally, this file can be found inside the build folder at `
 Additionally, the build command (in "West Build (`<keyboard>`)" step in GitHub Actions) logs what devicetree files were found and used in the build:
 
 ```
-+ west build -s zmk/app -d /tmp/tmp.8cJefinXCb -b corneish_zen_v2_left -- -DZMK_CONFIG=/tmp/zmk-config/config -DZMK_EXTRA_MODULES=/__w/zmk-config/zmk-config
++ west build -s zmk/app -d /tmp/tmp.8cJefinXCb -b corneish_zen_left@2 -- -DZMK_CONFIG=/tmp/zmk-config/config -DZMK_EXTRA_MODULES=/__w/zmk-config/zmk-config
 ...
--- Found BOARD.dts: /tmp/zmk-config/zmk/app/boards/arm/corneish_zen/corneish_zen_v2_left.dts
+-- Found BOARD.dts: /tmp/zmk-config/zmk/app/boards/lowprokb/corneish_zen/corneish_zen_left.dts
+-- Found devicetree overlay: /tmp/zmk-config/zmk/app/boards/lowprokb/corneish_zen/corneish_zen_left_2_0_0.overlay
 -- Found devicetree overlay: /tmp/zmk-config/config/corneish_zen.keymap
 ...
 ```