```

refactor(cursor_mac_id_modifier): 移除b6定点重写方法

移除了scripts/run/cursor_mac_id_modifier.sh脚本中的方法B（b6定点重写），
该方法原本用于在main.js中定位并重写机器码相关函数，但现在不再需要此功能。
```

Author: yuaotian

scripts/run/cursor_mac_id_modifier.sh

@@ -1935,192 +1935,6 @@ EOF
             replaced=true
         fi
 
-        # ========== 方法B: b6 定点重写（机器码源函数，仅 main.js） ==========
-        local b6_patched=false
-        if [ "$(basename "$file")" = "main.js" ]; then
-            if command -v python3 >/dev/null 2>&1; then
-                local b6_result
-                b6_result=$(python3 - "$file" "$machine_guid" "$machine_id" <<'PY'
-if True:
- import re, sys
- 
- def diag(msg):
-     print(f"[方案B][诊断] {msg}", file=sys.stderr)
-  
- path, machine_guid, machine_id = sys.argv[1], sys.argv[2], sys.argv[3]
- 
- with open(path, "r", encoding="utf-8") as f:
-     data = f.read()
- 
- # ✅ 1+3 融合：限定 out-build/vs/base/node/id.js 模块内做特征匹配 + 花括号配对定位函数边界
- marker = "out-build/vs/base/node/id.js"
- marker_index = data.find(marker)
- if marker_index < 0:
-     print("NOT_FOUND")
-     diag(f"未找到模块标记: {marker}")
-     raise SystemExit(0)
- 
- window_end = min(len(data), marker_index + 200000)
- window = data[marker_index:window_end]
- 
- def find_matching_brace(text, open_index, max_scan=20000):
-     limit = min(len(text), open_index + max_scan)
-     depth = 1
-     in_single = in_double = in_template = False
-     in_line_comment = in_block_comment = False
-     escape = False
-     i = open_index + 1
-     while i < limit:
-         ch = text[i]
-         nxt = text[i + 1] if i + 1 < limit else ""
- 
-         if in_line_comment:
-             if ch == "\n":
-                 in_line_comment = False
-             i += 1
-             continue
-         if in_block_comment:
-             if ch == "*" and nxt == "/":
-                 in_block_comment = False
-                 i += 2
-                 continue
-             i += 1
-             continue
- 
-         if in_single:
-             if escape:
-                 escape = False
-             elif ch == "\\\\":
-                 escape = True
-             elif ch == "'":
-                 in_single = False
-             i += 1
-             continue
-         if in_double:
-             if escape:
-                 escape = False
-             elif ch == "\\\\":
-                 escape = True
-             elif ch == '"':
-                 in_double = False
-             i += 1
-             continue
-         if in_template:
-             if escape:
-                 escape = False
-             elif ch == "\\\\":
-                 escape = True
-             elif ch == "`":
-                 in_template = False
-             i += 1
-             continue
- 
-         if ch == "/" and nxt == "/":
-             in_line_comment = True
-             i += 2
-             continue
-         if ch == "/" and nxt == "*":
-             in_block_comment = True
-             i += 2
-             continue
- 
-         if ch == "'":
-             in_single = True
-             i += 1
-             continue
-         if ch == '"':
-             in_double = True
-             i += 1
-             continue
-         if ch == "`":
-             in_template = True
-             i += 1
-             continue
- 
-         if ch == "{":
-             depth += 1
-         elif ch == "}":
-             depth -= 1
-             if depth == 0:
-                 return i
- 
-         i += 1
-     return None
- 
- # 🔧 修复：避免 raw string + 单引号 + ['"] 字符组导致的语法错误；同时修正正则转义，提升 b6 特征匹配命中率
- hash_re = re.compile(r"""createHash\(["']sha256["']\)""")
- sig_re = re.compile(r'^async function (\w+)\((\w+)\)')
- 
- hash_matches = list(hash_re.finditer(window))
- diag(f"marker_index={marker_index} window_len={len(window)} sha256_createHash={len(hash_matches)}")
- 
- for idx, hm in enumerate(hash_matches, start=1):
-     hash_pos = hm.start()
-     func_start = window.rfind("async function", 0, hash_pos)
-     if func_start < 0:
-         if idx <= 3:
-             diag(f"候选#{idx}: 未找到 async function 起点")
-         continue
- 
-     open_brace = window.find("{", func_start)
-     if open_brace < 0:
-         if idx <= 3:
-             diag(f"候选#{idx}: 未找到函数起始花括号")
-         continue
- 
-     end_brace = find_matching_brace(window, open_brace, max_scan=20000)
-     if end_brace is None:
-         if idx <= 3:
-             diag(f"候选#{idx}: 花括号配对失败（扫描上限内未闭合）")
-         continue
- 
-     func_text = window[func_start:end_brace + 1]
-     if len(func_text) > 8000:
-         if idx <= 3:
-             diag(f"候选#{idx}: 函数体过长 len={len(func_text)}，已跳过")
-         continue
- 
-     sm = sig_re.match(func_text)
-     if not sm:
-         if idx <= 3:
-             diag(f"候选#{idx}: 未解析到函数签名（async function name(param)）")
-         continue
-     name, param = sm.group(1), sm.group(2)
- 
-     # 特征校验：sha256 + hex digest + return param ? raw : hash
-     has_digest = re.search(r"""\.digest\(["']hex["']\)""", func_text) is not None
-     has_return = re.search(r'return\s+' + re.escape(param) + r'\?\w+:\w+\}', func_text) is not None
-     if idx <= 3:
-         diag(f"候选#{idx}: {name}({param}) len={len(func_text)} digest={has_digest} return={has_return}")
-     if not has_digest:
-         continue
-     if not has_return:
-         continue
- 
-     replacement = f'async function {name}({param}){{return {param}?"{machine_guid}":"{machine_id}";}}'
-     abs_start = marker_index + func_start
-     abs_end = marker_index + end_brace
-     new_data = data[:abs_start] + replacement + data[abs_end + 1:]
-     with open(path, "w", encoding="utf-8") as f:
-         f.write(new_data)
-     diag(f"命中并重写: {name}({param}) len={len(func_text)}")
-     print("PATCHED")
-     break
- else:
-     diag("未找到满足特征的候选函数")
-     print("NOT_FOUND")
-PY
-                )
-                if [ "$b6_result" = "PATCHED" ]; then
-                    log_info "   ✓ [方案B] 已重写 b6 特征函数"
-                    b6_patched=true
-                else
-                    log_warn "⚠️  [方案B] 未定位到 b6 特征函数"
-                fi
-            else
-                log_warn "⚠️  [方案B] 未检测到 python3，跳过 b6 定点重写"
-            fi
-        fi
 
         # ========== 方法C: Loader Stub 注入 ==========
         local inject_code='// ========== Cursor Hook Loader 开始 ==========