[0721] 添加 ImGui CI (#3916)

Author: JimZhouZZY

.github/workflows/ci-imgui-debian13.yml

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+name: Build ImGUI on Debian 13
+
+on:
+  push:
+    branches: [ main ]
+    paths:
+      - "src/**"
+      - "!src/Plugins/Macos/**"
+      - "!src/Plugins/Windows/**"
+      - "tests/**"
+      - "lolly/**"
+      - "moebius/**"
+      - "xmake.lua"
+      - 'xmake/options.lua'
+      - 'xmake/requires.lua'
+      - 'xmake/targets/**'
+      - "xmake/packages.lua"
+      - "xmake/packages/**"
+      - ".github/workflows/ci-imgui-debian13.yml"
+      - "TeXmacs/tests/*.scm"
+      - "3rdparty/**"
+  pull_request:
+    branches: [ main ]
+    paths:
+      - "src/**"
+      - "!src/Plugins/Macos/**"
+      - "!src/Plugins/Windows/**"
+      - "tests/**"
+      - "lolly/**"
+      - "moebius/**"
+      - "xmake.lua"
+      - 'xmake/options.lua'
+      - 'xmake/requires.lua'
+      - 'xmake/targets/**'
+      - "xmake/packages.lua"
+      - "xmake/packages/**"
+      - ".github/workflows/ci-imgui-debian13.yml"
+      - "TeXmacs/tests/*.scm"
+      - "3rdparty/**"
+  workflow_dispatch:
+
+env:
+  XMAKE_ROOT: y
+  XMAKE_GLOBALDIR: /tmp/xmake-global
+
+jobs:
+  build:
+    container: debian:13
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+    steps:
+      - name: Install dependencies
+        run: |
+          DEBIAN_FRONTEND=noninteractive apt-get update
+          DEBIAN_FRONTEND=noninteractive apt-get install -y gcc g++ git curl build-essential cmake \
+              libpng-dev libcurl4-openssl-dev libx11-dev libxcursor-dev libxi-dev \
+              libxinerama-dev libxrandr-dev libgl1-mesa-dev libxkbcommon-dev \
+              python3.13 python3.13-venv python3-pip ninja-build pkg-config unzip 7zip
+          update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.13 1
+      
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: git add safe directory
+        run: git config --global --add safe.directory '*'
+
+      - uses: xmake-io/github-action-setup-xmake@v1
+        with:
+          xmake-version: v3.0.7
+
+      - name: xmake repo --update
+        run: xmake repo --update
+
+      - name: cache packages from xrepo
+        uses: actions/cache@v4
+        with:
+          path: /tmp/xmake-global/.xmake/packages
+          key: ${{ runner.os }}-xrepo-imgui-${{ hashFiles('xmake/vars.lua', 'lolly/xmake.lua', 'moebius/xmake.lua', 'xmake/requires.lua') }}
+
+      - name: config
+        run: xmake config -vD --qt_frontend=no --policies=build.ccache --yes
+
+      - name: build stem
+        run: xmake b -vD stem

.github/workflows/ci-imgui-macos.yml

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+name: Build ImGUI on macOS
+
+on:
+  push:
+    branches: [ main ]
+    paths:
+      - 'src/Plugins/ImGui/**'
+      - ".github/workflows/ci-imgui-macos.yml"
+  pull_request:
+    branches: [ main ]
+    paths:
+      - 'src/Plugins/ImGui/**'
+      - ".github/workflows/ci-imgui-macos.yml"
+  workflow_dispatch:
+
+jobs:
+  macosbuild:
+    strategy:
+      matrix:
+        os: [macos-14]
+        arch: [arm64]
+    runs-on: ${{ matrix.os }}
+    timeout-minutes: 45
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: set XMAKE_GLOBALDIR
+        run: echo "XMAKE_GLOBALDIR=${{ runner.workspace }}/xmake-global" >> $GITHUB_ENV
+
+      - uses: xmake-io/github-action-setup-xmake@v1
+        with:
+          xmake-version: v3.0.7
+          actions-cache-folder: '.xmake-cache'
+
+      - name: xmake repo --update
+        run: xmake repo --update
+
+      - name: cache packages from xrepo
+        uses: actions/cache@v4
+        with:
+          path: ${{ env.XMAKE_GLOBALDIR }}/.xmake/packages
+          key: ${{ runner.os }}-xrepo-imgui-${{ matrix.arch }}-${{ hashFiles('xmake/vars.lua', 'lolly/xmake.lua', 'moebius/xmake.lua') }}
+
+      - name: config
+        run: xmake config -vD --qt_frontend=no --policies=build.ccache --yes
+
+      - name: build stem
+        run: xmake b -vD stem

devel/0721.md

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+# [0721] 添加 ImGui CI
+
+## What
+添加了 ImGui 在 Debian, macOS 上的 CI
+
+目前 Debian CI 的触发条件与现有的 CI 保持一致。
+
+macOS 的触发条件仅为修改了 `src/Plugins/ImGui` 下的文件
+
+Windows 在编译 `brush.cpp` 的时候似乎遇到了 `if not defined` 宏的问题，因此暂时没有添加