refactor(blender): stabilize naming sync and decouple translator architecture

- Implemented two-tier deferred renaming (timers for GUI, queue for background).
- Decoupled platform adapters into a registry-based Translator pattern.
- Resolved asynchronous naming inconsistencies and race conditions in CI/CD.
- Professionalized error handling and type safety across blender platform.
- Maintained 100% test pass rate across 170+ unit and integration tests.

Signed-off-by: arounamounchili <patouossa.mounchili@gmail.com>

Author: arounamounchili

core/src/linkforge_core/composer/link_builder.py

@@ -363,6 +363,49 @@ def prismatic(
         )
         return self._configure_joint(name, xyz, rpy)
 
+    def floating(
+        self,
+        name: str | None = None,
+        xyz: tuple[float, float, float] | None = None,
+        rpy: tuple[float, float, float] | None = None,
+    ) -> LinkBuilder:
+        """Configure the connection as a FLOATING (6 DOF) joint.
+
+        Args:
+            name: Unique joint name.
+            xyz: Joint origin translation.
+            rpy: Joint origin rotation.
+
+        Returns:
+            The LinkBuilder instance.
+        """
+        self._check_not_committed()
+        self._joint.type = JointType.FLOATING
+        return self._configure_joint(name, xyz, rpy)
+
+    def planar(
+        self,
+        axis: tuple[float, float, float],
+        name: str | None = None,
+        xyz: tuple[float, float, float] | None = None,
+        rpy: tuple[float, float, float] | None = None,
+    ) -> LinkBuilder:
+        """Configure the connection as a PLANAR joint.
+
+        Args:
+            axis: Plane normal unit vector.
+            name: Unique joint name.
+            xyz: Joint origin translation.
+            rpy: Joint origin rotation.
+
+        Returns:
+            The LinkBuilder instance.
+        """
+        self._check_not_committed()
+        self._joint.type = JointType.PLANAR
+        self._joint.axis = self._normalize_axis(axis)
+        return self._configure_joint(name, xyz, rpy)
+
     def dynamics(self, damping: float = 0.0, friction: float = 0.0) -> LinkBuilder:
         """Set the physical dynamics for the joint.