doc: samples: use :zephyr-app: for in-tree samples

The zephyr-app-commands directive can output a helpful hint to the user
when they are trying to build a sample that is in the Zephyr tree,
telling them to ensure they are in the root folder of the Zephyr repo.

Update all doc pages that were using :app: instead of :zephyr-app: so
that the hint is displayed.

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>

boards/01space/esp32c3_042_oled/doc/index.rst

@@ -130,7 +130,7 @@ To build the sample application using sysbuild, use this command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32c3_042_oled
    :goals: build
    :west-args: --sysbuild

boards/ct/ctcc/doc/index.rst

@@ -155,7 +155,7 @@ Zephyr repositories using :ref:`west` tool.
 #. Flash other Zephyr application to fill in slot0 e.g:
 
    .. zephyr-app-commands::
-      :app: samples/subsys/usb/dfu
+      :zephyr-app: samples/subsys/usb/dfu
       :board: ctcc/nrf52840
       :build-dir: dfu
       :goals: build

boards/espressif/esp32_devkitc_wroom/doc/index.rst

@@ -156,7 +156,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp_wrover_kit
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp32_devkitc_wrover/doc/index.rst

@@ -156,7 +156,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32_devkitc_wrover
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp32_ethernet_kit/doc/index.rst

@@ -478,7 +478,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32_ethernet_kit/esp32/procpu
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp32c3_devkitc/doc/index.rst

@@ -131,7 +131,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32c3_devkitc
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp32c3_devkitm/doc/index.rst

@@ -131,7 +131,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32c3_devkitm
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp32c3_rust/doc/index.rst

@@ -176,7 +176,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32c3_rust
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp32c6_devkitc/doc/index.rst

@@ -167,7 +167,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32c6_devkitc
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp32s2_devkitc/doc/index.rst

@@ -127,7 +127,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32s2_devkitc
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp32s2_saola/doc/index.rst

@@ -127,7 +127,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32s2_saola
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp32s3_devkitc/doc/index.rst

@@ -176,7 +176,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32s3_devkitc/esp32s3/procpu
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp32s3_devkitm/doc/index.rst

@@ -176,7 +176,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32s3_devkitm
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp8684_devkitm/doc/index.rst

@@ -126,7 +126,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp8684_devkitm
    :goals: build
    :west-args: --sysbuild

boards/espressif/esp_wrover_kit/doc/index.rst

@@ -542,7 +542,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp_wrover_kit
    :goals: build
    :west-args: --sysbuild

boards/franzininho/esp32s2_franzininho/doc/index.rst

@@ -94,7 +94,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32s2_franzininho
    :goals: build
    :west-args: --sysbuild

boards/hardkernel/odroid_go/doc/index.rst

@@ -135,7 +135,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: odroid_go
    :goals: build
    :west-args: --sysbuild

boards/heltec/heltec_wifi_lora32_v2/doc/index.rst

@@ -82,7 +82,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: heltec_wifi_lora32_v2
    :goals: build
    :west-args: --sysbuild

boards/heltec/heltec_wireless_stick_lite_v3/doc/index.rst

@@ -196,7 +196,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: heltec_wireless_stick_lite_v3
    :goals: build
    :west-args: --sysbuild

boards/lilygo/ttgo_lora32/doc/index.rst

@@ -125,7 +125,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: ttgo_lora32/esp32/procpu
    :goals: build
    :west-args: --sysbuild
@@ -214,7 +214,7 @@ To build the LoRa transmit sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/drivers/lora/send
+   :zephyr-app: samples/drivers/lora/send
    :board: ttgo_lora32/esp32/procpu
    :goals: build
    :west-args: --sysbuild
@@ -224,7 +224,7 @@ To build the LoRa receive sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/drivers/lora/receive
+   :zephyr-app: samples/drivers/lora/receive
    :board: ttgo_lora32/esp32/procpu
    :goals: build
    :west-args: --sysbuild

boards/lilygo/ttgo_t8c3/doc/index.rst

@@ -123,7 +123,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: ttgo_t8c3
    :goals: build
    :west-args: --sysbuild
@@ -212,15 +212,15 @@ To build the blinky sample:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/basic/blinky
+   :zephyr-app: samples/basic/blinky
    :board: ttgo_t8c3
    :goals: build
 
 To build the bluetooth beacon sample:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/bluetooth/beacon
+   :zephyr-app: samples/bluetooth/beacon
    :board: ttgo_t8c3
    :goals: build
 

boards/luatos/esp32c3_luatos_core/doc/index.rst

@@ -149,7 +149,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32c3_luatos_core
    :goals: build
    :west-args: --sysbuild

boards/luatos/esp32s3_luatos_core/doc/index.rst

@@ -175,7 +175,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: esp32s3_luatos_core
    :goals: build
    :west-args: --sysbuild

boards/m5stack/m5stickc_plus/doc/index.rst

@@ -124,7 +124,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: m5stickc_plus
    :goals: build
    :west-args: --sysbuild

boards/m5stack/stamp_c3/doc/index.rst

@@ -93,7 +93,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: stamp_c3
    :goals: build
    :west-args: --sysbuild

boards/olimex/olimex_esp32_evb/doc/index.rst

@@ -151,7 +151,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: olimex_esp32_evb
    :goals: build
    :west-args: --sysbuild

boards/others/icev_wireless/doc/index.rst

@@ -138,7 +138,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: icev_wireless
    :goals: build
    :west-args: --sysbuild

boards/seeed/xiao_esp32c3/doc/index.rst

@@ -120,7 +120,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: xiao_esp32c3
    :goals: build
    :west-args: --sysbuild

boards/seeed/xiao_esp32s3/doc/index.rst

@@ -135,7 +135,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: xiao_esp32s3
    :goals: build
    :west-args: --sysbuild

boards/vcc-gnd/yd_esp32/doc/index.rst

@@ -156,7 +156,7 @@ To build the sample application using sysbuild use the command:
 
 .. zephyr-app-commands::
    :tool: west
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: yd_esp32
    :goals: build
    :west-args: --sysbuild

doc/build/sysbuild/index.rst

@@ -95,7 +95,7 @@ As mentioned above, you can run sysbuild via ``west build`` or ``cmake``.
 
       .. zephyr-app-commands::
          :tool: west
-         :app: samples/hello_world
+         :zephyr-app: samples/hello_world
          :board: reel_board
          :goals: build
          :west-args: --sysbuild
@@ -166,7 +166,7 @@ applying to both images debug optimizations:
 
       .. zephyr-app-commands::
          :tool: west
-         :app: samples/hello_world
+         :zephyr-app: samples/hello_world
          :board: reel_board
          :goals: build
          :west-args: --sysbuild
@@ -316,7 +316,7 @@ enable MCUboot and build and flash the sample as follows:
 
       .. zephyr-app-commands::
          :tool: west
-         :app: samples/hello_world
+         :zephyr-app: samples/hello_world
          :board: reel_board
          :goals: build
          :west-args: --sysbuild
@@ -381,7 +381,7 @@ specify this file when building with sysbuild, as follows:
 
       .. zephyr-app-commands::
          :tool: west
-         :app: samples/hello_world
+         :zephyr-app: samples/hello_world
          :board: reel_board
          :goals: build
          :west-args: --sysbuild

doc/develop/application/index.rst

@@ -802,7 +802,7 @@ As an example, let's build the Hello World sample for the ``reel_board``:
 
 .. zephyr-app-commands::
    :tool: all
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :board: reel_board
    :goals: build
 
@@ -820,7 +820,7 @@ Using CMake directly:
 
 .. zephyr-app-commands::
    :tool: cmake
-   :app: samples/hello_world
+   :zephyr-app: samples/hello_world
    :generator: make
    :host-os: unix
    :board: reel_board

doc/develop/beyond-GSG.rst

@@ -203,7 +203,7 @@ a list of supported boards.
 #. Build the blinky sample for the ``reel_board``:
 
    .. zephyr-app-commands::
-      :app: samples/basic/blinky
+      :zephyr-app: samples/basic/blinky
       :board: reel_board
       :goals: build
 

doc/develop/debug/index.rst

@@ -225,7 +225,7 @@ Generate and Import an Eclipse Project
 
    .. zephyr-app-commands::
       :tool: all
-      :app: %ZEPHYR_BASE%\samples\synchronization
+      :zephyr-app: samples\synchronization
       :host-os: win
       :board: frdm_k64f
       :gen-args: -G"Eclipse CDT4 - Ninja"