Summary

DevEnv Manager 1.6 Stable release preparation.

This PR resolves the remaining UX and release blockers from the v1.6 QA cycle:

• Merged duplicated page guidance into one detailed 页面使用指南 per page.
• Improved Desktop/Downloads emergency analysis layout with summary, paginated category cards, paginated Top file details, and less cramped file cards.
• Fixed right-bottom toast lifecycle: in-progress messages stay visible until the operation returns; success/completion messages disappear about 5 seconds after the result appears; errors remain visible and closable.
• Keeps the previously completed backend high-risk confirmation-token coverage for env, project, port, service, cleanup, move/rollback/expansion, process kill, and MySQL repair operations.
• Bumps app metadata to 1.6.0 and updates README/update manifest for v1.6 Stable.

Release Asset

Prepared local installer asset for the final release:

• Asset: DevEnv.Manager_1.6_x64-setup.exe
• SHA256: 0224A9A6CC3B2004296D2B7C01D6C252A628E9F8FAD3254E3DCB9D5BBD2DF013
• Manifest URL: https://github.com/weidonglang/DevEnv-Manager/releases/download/v1.6/DevEnv.Manager_1.6_x64-setup.exe

Validation

cd tauri
npm run build
# passed

npm run tauri:build
# passed; generated MSI and NSIS installers for 1.6.0

cd src-tauri
cargo test --all-targets
# 109 passed; 0 failed

cargo clippy --all-targets -- -D warnings
# passed

cd ../..
py -3 scripts/check_repo_hygiene.py
# Repository hygiene check passed.

node -e "JSON.parse(require('fs').readFileSync('update-manifest.json','utf8'))"
# manifest parses and points to v1.6 asset + SHA256

GitHub Actions:

• quality: pass

Merge / Release Notes

After merge to main, publish GitHub Release v1.6 as latest with DevEnv.Manager_1.6_x64-setup.exe, then verify update-manifest.json is available from main and points to the uploaded asset.