fix(packaging): 修复 Windows 安装与固件打包并完善客户端文案

- fix(installer): 修复低完整性产物无法写入临时目录的问题，并在 CI 打包前后检查完整性标签
- fix(firmware): 从本次 Cargo ELF 打包并同步配套镜像，修正短目录说明与 LLVM 搜索顺序
- fix(installer): 修复中文完成页和页眉遮挡，侧栏使用等比缩放的原始 Logo
- style(client): 应用图标增加圆角，统一“裁判系统客户端”命名
- fix(config): 安装提示改用可选本地热点配置，排除 Wi-Fi 凭据
- docs: 润色项目说明并统一裁判系统术语
- test(packaging): 补充 Windows 完整性和固件打包回归，覆盖外部输出目录、旧镜像与重复生成

验证：Windows NSIS 构建及原生页面预览；通用与本地安装配置编译；固件 release 构建、重复打包和客户端离线校验；6 项固件打包回归与 Windows 权限回归；git diff --check。未执行实机烧录。

scripts/build.ps1

@@ -51,19 +51,33 @@ try {
     $espClang = Join-Path $env:USERPROFILE '.rustup\toolchains\esp-1.97.0.0\xtensa-esp32-elf-clang\esp-clang\bin'
     if (Test-Path -LiteralPath (Join-Path $espClang 'libclang.dll')) {
         $env:LIBCLANG_PATH = $espClang
-        if (-not ($env:PATH -split ';' | Where-Object { $_ -eq $espClang })) {
-            $env:PATH = $espClang + ';' + $env:PATH
-        }
+        # An existing entry can be behind another LLVM installation. Move it
+        # to the front so libclang-cpp.dll and the runtime match libclang.dll.
+        $otherPaths = @($env:PATH -split ';' | Where-Object { $_ -ne $espClang })
+        $env:PATH = (@($espClang) + $otherPaths) -join ';'
     }
 
     $env:CARGO_WORKSPACE_DIR = (Get-Location).Path
     $env:ESP_IDF_GLOB_BASE = (Get-Location).Path
     $env:ESP_IDF_GLOB_PARTITIONS = 'partitions.csv'
 
-    & cargo build --release --locked @CargoArgs
+    $firmwareElf = $null
+    if ($Package) {
+        # Use Cargo's actual artifact path, including --target-dir / --config
+        # overrides, rather than guessing where this build wrote its ELF.
+        & cargo build --release --locked --message-format=json-render-diagnostics @CargoArgs | ForEach-Object {
+            $message = $_ | ConvertFrom-Json
+            if ($message.reason -eq 'compiler-artifact' -and $message.target.name -eq 'esp32' -and $message.executable) {
+                $firmwareElf = $message.executable
+            }
+        }
+    } else {
+        & cargo build --release --locked @CargoArgs
+    }
     if ($LASTEXITCODE -ne 0) { throw "cargo build failed (exit $LASTEXITCODE)." }
 
     if ($Package) {
+        if (-not $firmwareElf) { throw 'Cargo did not report the esp32 firmware ELF; refusing to package old images.' }
         $python = Get-Command python -ErrorAction SilentlyContinue
         if ($null -eq $python) {
             throw '-Package requires Python 3 on PATH (used by scripts/package_firmware.py).'
@@ -76,7 +90,7 @@ try {
             $info = Get-Content -LiteralPath 'version.json' -Raw | ConvertFrom-Json
             $versionArgs = @('--version', "v$($info.version)+$($info.build)")
         }
-        & python scripts/package_firmware.py --firmware target/firmware --name 'RMIC 图传固件' @versionArgs
+        & python scripts/package_firmware.py --firmware target/firmware --elf $firmwareElf --name 'RMIC 图传固件' @versionArgs
         if ($LASTEXITCODE -ne 0) { throw "package_firmware.py failed (exit $LASTEXITCODE)." }
     }
 } finally {