feat(hal): read display rotation from hardware_config.json

Load the full hardware config up front rather than only the GPIO section,
so display settings can come from the same file. Adds a rotate parameter
that falls back to display.rotate in the config when not passed
explicitly, and logs the resolved value.

Also bumps the dreader-hal submodule to 64c9177 (use partial draw) and
adds a direct IT8951 example that bypasses the HAL, for isolating display
problems to the driver layer.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

dreader/hal_hardware.py

@@ -140,6 +140,7 @@ class HardwareDisplayHAL(DisplayHAL):
         height: int = 1404,
         vcom: float = -2.0,
         spi_hz: int = 24_000_000,
+        rotate: Optional[str] = None,
         virtual_display: bool = False,
         auto_sleep_display: bool = True,
         enable_orientation: bool = True,
@@ -170,8 +171,29 @@ class HardwareDisplayHAL(DisplayHAL):
         self.width = width
         self.height = height
 
+        # Load config from file to get display settings
+        full_config = None
+        if config_file or gpio_config is None:
+            config_path = Path(config_file or "hardware_config.json")
+            if config_path.exists():
+                try:
+                    with open(config_path, 'r') as f:
+                        full_config = json.load(f)
+                    logger.info(f"Loaded hardware config from {config_path}")
+
+                    # Override display parameters from config if not explicitly provided
+                    display_config = full_config.get('display', {})
+                    if rotate is None and 'rotate' in display_config:
+                        rotate = display_config['rotate']
+                        logger.info(f"  Using rotate from config: {rotate}")
+
+                    gpio_config = full_config
+                except Exception as e:
+                    logger.warning(f"Could not load hardware config from {config_path}: {e}")
+
         logger.info(f"Initializing HardwareDisplayHAL: {width}x{height}")
         logger.info(f"  VCOM: {vcom}V")
+        logger.info(f"  Rotate: {rotate}")
         logger.info(f"  Virtual display: {virtual_display}")
         logger.info(f"  Orientation: {enable_orientation}")
         logger.info(f"  RTC: {enable_rtc}")
@@ -183,6 +205,7 @@ class HardwareDisplayHAL(DisplayHAL):
             height=height,
             vcom=vcom,
             spi_hz=spi_hz,
+            rotate=rotate,
             virtual_display=virtual_display,
             auto_sleep_display=auto_sleep_display,
             enable_orientation=enable_orientation,
@@ -195,18 +218,6 @@ class HardwareDisplayHAL(DisplayHAL):
         # GPIO button handler (optional)
         self.gpio_handler: Optional[GPIOButtonHandler] = None
 
-        # Load GPIO config from file if specified
-        if config_file or gpio_config is None:
-            config_path = Path(config_file or "hardware_config.json")
-            if config_path.exists():
-                try:
-                    with open(config_path, 'r') as f:
-                        full_config = json.load(f)
-                    gpio_config = full_config
-                    logger.info(f"Loaded hardware config from {config_path}")
-                except Exception as e:
-                    logger.warning(f"Could not load hardware config from {config_path}: {e}")
-
         # Initialize GPIO buttons if configured
         if gpio_config and GPIO_BUTTONS_AVAILABLE:
             try: