Fix(pipeline): optimize docker build, fix zip structure, and update UI

- Docker:
  - Explicitly install pixi environments (digger, pipeline, webbackend) during build to prevent runtime network/DNS failures.
  - Optimize pnpm config (copy method) to fix EAGAIN errors.
- Backend:
  - Refactor ZIP bundling: use flat semantic directories (1_Toxin_Mining, etc.).
  - Fix "nested zip" issue by cleaning existing archives before bundling.
  - Exclude raw 'context' directory from final download.
- Frontend:
  - Update TutorialView documentation to match new result structure.
  - Improve TaskMonitor progress bar precision (1 decimal place).
  - Update i18n (en/zh) for new file descriptions.

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

pixi.toml

@@ -1,6 +1,6 @@
 [workspace]
 name = "bttoxin-pipeline"
-channels = ["conda-forge", "bioconda", "bioconda/label/cf201901"]
+channels = ["conda-forge", "bioconda"]
 platforms = ["linux-64"]
 version = "0.1.0"
 channel-priority = "disabled"
@@ -8,6 +8,9 @@ channel-priority = "disabled"
 # =========================
 # digger 环境：bioconda 依赖
 # =========================
+[feature.digger]
+channels = ["bioconda", "conda-forge", "bioconda/label/cf201901"]
+
 [feature.digger.dependencies]
 bttoxin_digger = "==1.0.10"
 perl = "==5.26.2"