fix: allow dependency install from webui

[EterUltimate]

Summary

Fix the dependency-install deadlock by moving the manual install contract to the WebUI Dashboard confirmation flow and bump the plugin version to 3.5.2 for release.

Changes

• Allow dependency installation after explicit WebUI confirmation without requiring the old system_settings source.
• Send manual_confirmed: true and source: webui_settings from the Solid Dashboard settings page.
• Add frontend and integration regressions for WebUI dependency install confirmation, including the no-old-source path.
• Stabilize the metadata logging assertion so the full pytest suite works with the AstrBot/logger output path.
• Update dependency-install docs and rebuild embedded dashboard assets.
• Bump metadata.yaml, __version__, README badges, and WebUI package version to 3.5.2.

Related Issues

Closes #237

Type of Change

• Bug fix
• New feature
• Refactoring (no functional changes)
• Documentation update
• Other:

Checklist

• Code follows the project's coding style
• Self-reviewed the code changes
• No new warnings or errors introduced
• Tested on SQLite mode
• Tested on MySQL mode (if applicable)

Validation:

• pnpm test -- --runInBand
• pnpm run typecheck
• pnpm run build
• python -m pytest --no-cov
• python -m pytest tests\integration\test_config_dependency_install.py tests\integration\test_package_imports.py
• python -m py_compile core\page_api.py webui\blueprints\config.py
• python C:\Users\zacza\.codex\skills\skill-astrbot-dev\scripts\pre_review_check.py C:\Users\zacza\Desktop\x\self_learning_EterU
• git diff --check

[sourcery-ai]

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