cleanup: remove dead code and duplicate docs

- Remove session-ses_2f27.md (161KB raw session log)
- Remove 49 ROOT_* duplicate files across REFERENCE/
- Remove 14 duplicate files between REFERENCE/ root and history/
- Remove asr_legacy.rs (dead code, replaced by asr.rs)
- Remove src/core/worker/ (duplicate JobWorker)
- Remove src/core/layers/ (empty directory)
- Remove 4 .bak files in src/
- Remove 7 dead private methods in worker/processor.rs
- Remove backup directory from git tracking

scripts/test_end_to_end.py

@@ -6,10 +6,8 @@
 
 import os
 import sys
-import json
 import numpy as np
 import cv2
-from pathlib import Path
 
 # 添加項目根目錄到 Python 路徑
 sys.path.insert(0, os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
@@ -70,7 +68,7 @@ def test_face_registration():
         )
 
         if result["success"]:
-            print(f"✅ 人臉註冊成功")
+            print("✅ 人臉註冊成功")
             print(f"  - Face ID: {result.get('face_id')}")
             print(f"  - 嵌入向量維度: {len(result.get('embedding', []))}")
             print(f"  - 屬性: {result.get('attributes', {})}")
@@ -79,7 +77,7 @@ def test_face_registration():
             embedding = result.get("embedding", [])
             if embedding:
                 np.save("/tmp/test_face_embedding.npy", embedding)
-                print(f"✅ 嵌入向量已保存")
+                print("✅ 嵌入向量已保存")
 
             return True, result
         else:
@@ -237,7 +235,7 @@ def test_database_operations():
         )
 
         result = cursor.fetchone()
-        print(f"✅ 查詢結果:")
+        print("✅ 查詢結果:")
         print(f"  - ID: {result[0]}")
         print(f"  - 視頻UUID: {result[1]}")
         print(f"  - 幀號: {result[2]}")