ModelTranslator: polish QR backend (docstring, gitignore out_*, progress tests)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Tools/ModelTranslator/.gitignore

@@ -1,2 +1,3 @@
 out/
+out_*/
 __pycache__/

Tools/ModelTranslator/bl_decimate.py

@@ -1,5 +1,6 @@
 """Blender 内运行：FBX 减面到指定三角面数 + UV 重展（锐边 seam 或 Smart UV Project）。
-调用：blender -b --factory-startup --python bl_decimate.py -- <src.fbx> <out.fbx> <target_tris> [seam|smart]
+调用：blender -b --factory-startup --python bl_decimate.py --
+     <src.fbx> <out.fbx> <target_tris> [unwrap:seam|smart] [overlap_tol] [reducer:collapse|quad]
 """
 import os
 import sys

Tools/ModelTranslator/tests/test_qr_bridge.py

@@ -54,6 +54,13 @@ class TestParseProgress(unittest.TestCase):
     def test_running_fraction(self):
         self.assertEqual(qb.parse_progress("0.5"), ("running", ""))
 
+    def test_running_positive_nonfinal(self):
+        # 正整数但非终态标记 2 -> running（引擎进度信号，非成功）
+        self.assertEqual(qb.parse_progress("1"), ("running", ""))
+
+    def test_success_float_form(self):
+        self.assertEqual(qb.parse_progress("2.0"), ("success", ""))
+
     def test_running_empty(self):
         self.assertEqual(qb.parse_progress(""), ("running", ""))