Refactor: Unified pipeline execution, simplified UI, and fixed Docker config

- Backend: Refactored tasks.py to directly invoke run_single_fna_pipeline.py for consistency.
- Backend: Changed output format to ZIP and added auto-cleanup of intermediate files.
- Backend: Fixed language parameter passing in API and tasks.
- Frontend: Removed CRISPR Fusion UI elements from Submit and Monitor views.
- Frontend: Implemented simulated progress bar for better UX.
- Frontend: Restored One-click load button and added result file structure documentation.
- Docker: Fixed critical Restarting loop by removing incorrect image directive in docker-compose.yml.
- Docker: Optimized Dockerfile to correct .pixi environment path issues and prevent accidental deletion of frontend assets.

activate_backend.sh

@@ -1,12 +1,12 @@
 export PATH="/app/.pixi/envs/webbackend/bin:/root/.pixi/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
 export CONDA_SHLVL=1
 export CONDA_PREFIX=/app/.pixi/envs/webbackend
-export PIXI_PROJECT_ROOT=/app
+export PIXI_PROJECT_VERSION=0.1.0
+export PIXI_EXE=/usr/local/bin/pixi
 export PIXI_PROJECT_NAME=bttoxin-pipeline
 export PIXI_PROJECT_MANIFEST=/app/pixi.toml
-export PIXI_PROJECT_VERSION=0.1.0
 export PIXI_IN_SHELL=1
-export PIXI_EXE=/usr/local/bin/pixi
+export PIXI_PROJECT_ROOT=/app
 export CONDA_DEFAULT_ENV=bttoxin-pipeline:webbackend
 export PIXI_ENVIRONMENT_NAME=webbackend
 export PIXI_ENVIRONMENT_PLATFORMS=linux-64