Fix(pipeline): prevent nested zip packaging and update CRISPR dependencies

- Add filter to skip .zip and .tar.gz files when creating result archive
- Update CRISPR feature with CASFinder dependencies (hmmer, blast, vmatch, etc.)
- Add install-casfinder task for macsydata installation
- Remove obsolete CRISPR test files

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

backend/app/workers/tasks.py

@@ -160,6 +160,10 @@ def run_bttoxin_analysis(
                             if file_path == zip_path:
                                 continue
 
+                            # 防止嵌套打包：忽略可能存在的 zip 或 tar.gz 文件
+                            if file.endswith('.zip') or file.endswith('.tar.gz'):
+                                continue
+
                             # 计算相对路径，例如 digger/Results/foo.txt -> Results/foo.txt
                             rel_path = file_path.relative_to(src_path)
                             # 构造新的归档路径 -> 1_Toxin_Mining/Results/foo.txt