Upgrade motion capture: template matching, frame-freeze selection, resolution

Tracking:
- Add "template" mode (default) using snapshot + shape-masked matchTemplate
- Add "csrt" mode as alternative for texture-rich targets
- set_roi_rect(x, y, w, h, frame_rgb) initialises from exact selection rect
- set_roi() delegates to set_roi_rect (centred square, backwards-compat)
- start() accepts resolution=(w, h) to set camera capture resolution

Selection UX:
- Replace QLabel feed with FrameSelector widget (custom QWidget)
- "Click to Track" freezes frame; user scrolls to zoom (anchored to cursor),
  right-drags to pan, left-drags to draw rubber-band selection
- Shape preview: rectangle or inscribed ellipse depending on mode
- "Confirm Selection" extracts template from frozen frame and starts tracking
- "Clear" cancels selection or clears active tracking

Configuration:
- CameraPanel adds Resolution combo (Default / 640×480 / 720p / 1080p / 1440p)
- CameraDevice stores and forwards resolution to tracker.start()
- Template Match listed first in Mode combo; shape combo hidden for CSRT

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

1 files changed, 7 insertions, 2 deletions

diff --git a/plugins/motion_capture/device.py b/plugins/motion_capture/device.py
index 9806030..8eb1591 100644
--- a/plugins/motion_capture/device.py
+++ b/plugins/motion_capture/device.py
@@ -26,7 +26,8 @@ class CameraDevice(BaseDevice):
 
     def __init__(self, device_id: str = "cam_0",
                  camera_index: int = 0,
-                 simulate: bool = False):
+                 simulate: bool = False,
+                 resolution=None):
         name = "Camera (Sim)" if simulate else f"Camera {camera_index}"
         super().__init__(DeviceInfo(
             device_id   = device_id,
@@ -55,6 +56,7 @@ class CameraDevice(BaseDevice):
         ))
         self._camera_index           = camera_index
         self._simulate               = simulate
+        self._resolution             = resolution
         self._tracker: Optional[Any] = None
         self._tracking_win           = None
 
@@ -63,7 +65,10 @@ class CameraDevice(BaseDevice):
     def connect(self) -> bool:
         from tracker import CameraTracker
         self._tracker = CameraTracker()
-        self._tracker.start(-1 if self._simulate else self._camera_index)
+        self._tracker.start(
+            -1 if self._simulate else self._camera_index,
+            resolution=self._resolution,
+        )
         if self._tracker.simulated:
             self.status = DeviceStatus.SIMULATED
         else: