Implement Phase 6 features for Stickman Editor

- Updated BUGS.md with new issues related to selection bounding box, touchpad panning speed, and zooming behavior.
- Enhanced PROJECT.md with detailed specifications for touchpad controls, recent colors in the color picker, and a status bar for project information.
- Modified project.godot to update compatibility version to 4.7.
- Added a status bar in stickman_editor.tscn to display cursor coordinates and snap status.
- Updated body_part_panel.gd to handle recent colors and cursor detection over drawing areas.
- Enhanced stickman_editor.gd to manage cursor coordinates display and recent colors tracking.
- Improved whole_stickman_preview.gd to render selection gizmos on top of other parts.
- Created master_rig.tscn for the stickman rig structure with bones and IK targets.
- Developed master_rig_builder.gd to automate the rig building process with remote transforms and IK modifications.

scripts/body_part_panel.gd

@@ -19,6 +19,7 @@ signal shape_changed(shape_data: Array)
 signal shape_selected()
 signal shape_copy_requested(shape_dict: Dictionary)
 signal shape_paste_requested(world_pos: Vector2)
+signal color_selected(color: Color)
 
 # ---------------------------------------------------------------------------
 # Exported / public properties
@@ -269,6 +270,13 @@ func set_has_clipboard(state: bool) -> void:
 	_has_clipboard = state
 
 
+func set_recent_colors(colors_hex: Array) -> void:
+	for preset in color_picker.get_presets():
+		color_picker.erase_preset(preset)
+	for hex_str in colors_hex:
+		color_picker.add_preset(Color.from_string(str(hex_str), Color.BLACK))
+
+
 func paste_shape(source: Dictionary, target_pos: Vector2) -> void:
 	## Insert a deep copy of the clipboard shape at the given world position.
 	## The shape's points are translated so its center is at target_pos.
@@ -293,6 +301,14 @@ func paste_shape(source: Dictionary, target_pos: Vector2) -> void:
 	drawing_area.queue_redraw()
 	_emit_changed()
 
+
+func is_cursor_over_drawing(global_pos: Vector2) -> bool:
+	return drawing_area.get_global_rect().has_point(global_pos)
+
+
+func global_to_world(global_pos: Vector2) -> Vector2:
+	return _screen_to_world(global_pos - drawing_area.global_position)
+
 # ---------------------------------------------------------------------------
 # Internal helpers
 # ---------------------------------------------------------------------------
@@ -427,6 +443,22 @@ func _draw_polyline(pts: PackedVector2Array, color: Color, closed: bool, width:
 # ---------------------------------------------------------------------------
 
 func _on_drawing_area_gui_input(event: InputEvent) -> void:
+	if event is InputEventMagnifyGesture:
+		var mag := event as InputEventMagnifyGesture
+		var cursor_local := drawing_area.get_local_mouse_position()
+		var world := _screen_to_world(cursor_local)
+		_zoom = clampf(_zoom * mag.factor, MIN_ZOOM, MAX_ZOOM)
+		_pan_offset = cursor_local - world * _zoom
+		drawing_area.queue_redraw()
+		return
+
+	if event is InputEventPanGesture:
+		var pan := event as InputEventPanGesture
+		_pan_offset -= pan.delta * 3.0
+		_dragging_vertex = -1
+		drawing_area.queue_redraw()
+		return
+
 	if event is InputEventMouseButton:
 		var mb := event as InputEventMouseButton
 
@@ -442,11 +474,17 @@ func _on_drawing_area_gui_input(event: InputEvent) -> void:
 
 		# 2. Mouse wheel -> zoom
 		if mb.button_index == MOUSE_BUTTON_WHEEL_UP and mb.pressed:
+			var cursor_local := mb.position
+			var world := _screen_to_world(cursor_local)
 			_zoom = clampf(_zoom * ZOOM_STEP, MIN_ZOOM, MAX_ZOOM)
+			_pan_offset = cursor_local - world * _zoom
 			drawing_area.queue_redraw()
 			return
 		if mb.button_index == MOUSE_BUTTON_WHEEL_DOWN and mb.pressed:
+			var cursor_local := mb.position
+			var world := _screen_to_world(cursor_local)
 			_zoom = clampf(_zoom / ZOOM_STEP, MIN_ZOOM, MAX_ZOOM)
+			_pan_offset = cursor_local - world * _zoom
 			drawing_area.queue_redraw()
 			return
 
@@ -468,7 +506,7 @@ func _on_drawing_area_gui_input(event: InputEvent) -> void:
 		var mm := event as InputEventMouseMotion
 
 		if _is_panning:
-			_pan_offset += (mm.position - _pan_start) / _zoom
+			_pan_offset += (mm.position - _pan_start)
 			_pan_start = mm.position
 			drawing_area.queue_redraw()
 			return
@@ -878,6 +916,7 @@ func _on_color_picker_changed(new_color: Color) -> void:
 
 func _on_color_picker_ok() -> void:
 	color_picker_popup.hide()
+	color_selected.emit(color_picker.color)
 	_emit_changed()