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>

Services/IKwpService.cs

@@ -136,11 +136,66 @@ namespace HC_APTBS.Services
 
         /// <summary>
         /// Attempts a fast immobilizer unlock by sending a KWP custom command
-        /// over an existing K-Line session. Returns <see langword="true"/> if the
-        /// command was acknowledged (pump already unlocked), <see langword="false"/>
-        /// if it was rejected or no session is active.
+        /// over an existing K-Line session. The RAM address byte written by the
+        /// command is selected by <paramref name="unlockType"/>: <c>1</c> → <c>0xA8</c>,
+        /// <c>2</c> → <c>0xE8</c>. Any other value is rejected and returns
+        /// <see langword="false"/>.
         /// </summary>
-        Task<bool> TryFastUnlockAsync();
+        /// <param name="unlockType">Pump unlock variant (1 or 2).</param>
+        /// <returns>
+        /// <see langword="true"/> when the command was acknowledged,
+        /// <see langword="false"/> on NAK, no active session, or unsupported type.
+        /// </returns>
+        Task<bool> TryFastUnlockAsync(int unlockType);
+
+        // ── Raw custom KWP packet (developer use) ─────────────────────────────────
+
+        /// <summary>
+        /// Sends a raw KWP1281 custom packet over the persistent K-Line session and
+        /// returns the bytes of every response packet. The supplied <paramref name="payload"/>
+        /// is the title byte plus body — framing (length + counter + end byte) is added
+        /// by the lower-level transport.
+        ///
+        /// <para>Returns an empty list when no session is active or the send fails.
+        /// Used by the Developer Tools page; never called from production paths.</para>
+        /// </summary>
+        /// <param name="payload">Packet bytes excluding length/counter/end framing.</param>
+        /// <param name="ct">Cancellation token.</param>
+        /// <returns>Each response packet's full byte sequence (length…end inclusive).</returns>
+        Task<IReadOnlyList<byte[]>> SendRawCustomAsync(byte[] payload, CancellationToken ct = default);
+
+        /// <summary>
+        /// Reads <paramref name="count"/> bytes from EEPROM starting at <paramref name="address"/>
+        /// over the persistent K-Line session (KWP <c>ReadEeprom</c> command 0x19).
+        /// Returns an empty list when no session is active or the ECU returns NAK.
+        /// Used by the Developer Tools page's dumper; max 13 bytes per call.
+        /// </summary>
+        Task<IReadOnlyList<byte>> ReadEepromAsync(ushort address, byte count, CancellationToken ct = default);
+
+        /// <summary>
+        /// Reads <paramref name="count"/> bytes from ROM/EEPROM starting at <paramref name="address"/>
+        /// over the persistent K-Line session (KWP <c>ReadRomEeprom</c> command 0x03).
+        /// Valid range 0x0000–0x9FFF. Returns an empty list when no session is active or
+        /// the ECU returns NAK. Used by the Developer Tools page's dumper; max 13 bytes per call.
+        /// </summary>
+        Task<IReadOnlyList<byte>> ReadRomEepromAsync(ushort address, byte count, CancellationToken ct = default);
+
+        // ── BIP status ────────────────────────────────────────────────────────────
+
+        /// <summary>
+        /// Reads the 16-bit BIP status word from ECU RAM address <c>0x0106</c>
+        /// (<c>ADR-S_BIP_HW_UW</c>) over the persistent K-Line session.
+        /// Returns <see langword="null"/> when no session is active or if the read fails.
+        /// </summary>
+        /// <param name="ct">Cancellation token.</param>
+        Task<ushort?> ReadBipStatusAsync(CancellationToken ct = default);
+
+        /// <summary>
+        /// Raised after a successful <see cref="ReadBipStatusAsync"/> call with the
+        /// raw 16-bit BIP status word. Fires on a background thread;
+        /// consumers must marshal to the UI thread.
+        /// </summary>
+        event Action<ushort>? BipStatusRead;
 
         // ── Power cycle callbacks ─────────────────────────────────────────────────