feat: developer tools page, auto-test orchestrator, BIP display, tests redesign

Bundles several feature streams that have been iterating on the working tree:

- Developer Tools page (Debug-only via DEVELOPER_TOOLS symbol): hosts the
  identification card, manual KWP write + transaction log, ROM/EEPROM dump
  card with progress banner and completion message, persisted custom-commands
  library, persisted EEPROM passwords library. New service primitives:
  IKwpService.SendRawCustomAsync / ReadEepromAsync / ReadRomEepromAsync.
  Persistence mirrors the Clients XML pattern in two new files
  (custom_commands.xml, eeprom_passwords.xml).
- Auto-test orchestrator (IAutoTestOrchestrator + AutoTestState): linear
  K-Line read -> unlock -> bench-on -> test sequence with snackbar UI and
  progress dialog VM, gated on dashboard alarms.
- BIP-STATUS display: BipDisplayViewModel + BipDisplayView, RAM read at
  0x0106 via IKwpService.ReadBipStatusAsync; status definitions in
  BipStatusDefinition.
- Tests page redesign: TestSectionCard + PhaseTileView replacing the old
  TestPlanView/TestRunningView/TestDoneView/TestPreconditionsView/
  TestSectionView controls and their VMs.
- Pump command sliders: Fluent thick-track style with overhang thumb,
  click-anywhere-and-drag, mouse-wheel adjustment.
- Window startup: app.manifest declares PerMonitorV2 DPI awareness,
  MainWindow installs a WM_GETMINMAXINFO hook in OnSourceInitialized and
  maximizes there (after the hook is in place) so the app fits the work
  area exactly on any display configuration.
- Misc: PercentToPixelsConverter, seed_aliases.py one-shot pump-alias
  importer, tools/Import-BipStatus.ps1, kline_eeprom_spec.md and
  dump-functions reference docs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

HC_APTBS.csproj

@@ -11,6 +11,9 @@
     <PlatformTarget>x64</PlatformTarget>
     <AssemblyName>HC_APTBS</AssemblyName>
     <RootNamespace>HC_APTBS</RootNamespace>
+    <!-- Declares PerMonitor V2 DPI awareness — fixes maximized-window clipping on
+         scaled displays. Manifest source: app.manifest. -->
+    <ApplicationManifest>app.manifest</ApplicationManifest>
   </PropertyGroup>
 
   <ItemGroup>
@@ -20,6 +23,26 @@
     <Page Remove="old_source\**" />
   </ItemGroup>
 
+  <!--
+    Developer Tools page: compiled into Debug builds only.
+    The DEVELOPER_TOOLS symbol gates the C# source that references the page
+    (AppPage.Developer, MainViewModel.DeveloperPage, MainWindow nav injection).
+    The Release ItemGroup removes the page files entirely so consumer builds
+    contain no trace of the developer-only UI.
+  -->
+  <PropertyGroup Condition="'$(Configuration)' != 'Release'">
+    <DefineConstants>$(DefineConstants);DEVELOPER_TOOLS</DefineConstants>
+  </PropertyGroup>
+
+  <ItemGroup Condition="'$(Configuration)' == 'Release'">
+    <Compile Remove="ViewModels\Pages\DeveloperPageViewModel.cs" />
+    <Compile Remove="ViewModels\Pages\DeveloperToolsDumpViewModel.cs" />
+    <Compile Remove="ViewModels\Pages\DeveloperToolsCommandsViewModel.cs" />
+    <Compile Remove="ViewModels\Pages\DeveloperToolsPasswordsViewModel.cs" />
+    <Compile Remove="Views\Pages\DeveloperPage.xaml.cs" />
+    <Page Remove="Views\Pages\DeveloperPage.xaml" />
+  </ItemGroup>
+
   <ItemGroup>
     <!-- MVVM source generators: [ObservableProperty], [RelayCommand], etc. -->
     <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />