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_with_real_image.py

@@ -5,7 +5,6 @@
 
 import os
 import sys
-import json
 import numpy as np
 import cv2
 
@@ -211,7 +210,7 @@ def test_database_functions():
         )
 
         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"  - 人臉ID: {result[2]}")
@@ -251,7 +250,7 @@ def test_database_functions():
         )
 
         similar_faces = cursor.fetchall()
-        print(f"✅ 向量搜索測試:")
+        print("✅ 向量搜索測試:")
         print(f"  - 找到 {len(similar_faces)} 個相似人臉")
 
         for face in similar_faces:
@@ -272,7 +271,7 @@ def test_database_functions():
         cursor.execute("SELECT COUNT(*) FROM face_recognition_results;")
         total_results = cursor.fetchone()[0]
 
-        print(f"✅ 數據庫統計:")
+        print("✅ 數據庫統計:")
         print(f"  - 人臉檢測記錄: {total_detections}")
         print(f"  - 人臉身份: {total_identities}")
         print(f"  - 人臉聚類: {total_clusters}")
@@ -344,7 +343,7 @@ def test_system_integration():
         if result.returncode == 0:
             print("✅ Rust 編譯檢查通過")
         else:
-            print(f"❌ Rust 編譯檢查失敗:")
+            print("❌ Rust 編譯檢查失敗:")
             print(result.stderr)
             return False