feat(batch-install-plugins): initial release v1.0.0

Add Batch Install Plugins from GitHub tool with:
- One-click installation of plugins from GitHub repositories
- Smart plugin discovery with metadata extraction and validation
- Confirmation dialog with plugin list preview
- Selective installation with keyword-based filtering
- Smart fallback: auto-retry with localhost:8080 on connection failure
- Enhanced debugging with frontend and backend logging
- 120-second confirmation timeout for user convenience
- Async httpx client for non-blocking I/O
- Complete i18n support across 11 languages
- Event emitter handling with fallback support
- Timeout guards on frontend JavaScript execution
- Filtered list consistency for confirmation and installation
- Auto-exclusion of tool itself from batch operations
- 6 regression tests with 100% pass rate

Documentation includes:
- English and Chinese READMEs with flow diagrams
- Popular repository examples (iChristGit, Haervwe, Classic298, suurt8ll)
- Mirrored docs for official documentation site
- Plugin index entries in both languages
- Comprehensive release notes (v1.0.0.md and v1.0.0_CN.md)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

plugins/tools/batch-install-plugins/v1.0.0.md

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+[![](https://img.shields.io/badge/OpenWebUI%20Community-Get%20Plugin-blue?style=for-the-badge)](https://openwebui.com/t/fujie/batch_install_plugins)
+
+## Overview
+
+Batch Install Plugins from GitHub is a new tool for OpenWebUI that enables one-click installation of multiple plugins directly from GitHub repositories. This initial release includes comprehensive features for discovering, filtering, and installing plugins with user confirmation, extensive multi-language support, and robust debugging capabilities for container deployments.
+
+**[📖 README](https://github.com/Fu-Jie/openwebui-extensions/blob/main/plugins/tools/batch-install-plugins/README.md)**
+
+## Features
+
+- **One-Click Installation**: Install all plugins from a repository with a single command
+- **Smart Plugin Discovery**: Parse Python files to extract metadata and validate plugins automatically
+- **Multi-Type Support**: Support Pipe, Action, Filter, and Tool plugins in a single operation
+- **Confirmation Dialog**: Display plugin list before installation for user review and approval
+- **Selective Installation**: Exclude specific plugins using keyword-based filtering
+- **Smart Fallback**: Container deployments auto-retry with localhost:8080 if primary connection fails
+- **Enhanced Debugging**: Rich frontend JavaScript and backend Python logs for troubleshooting
+- **Extended Timeout**: 120-second confirmation window for thoughtful decision-making
+- **Async Architecture**: Non-blocking I/O operations for better performance
+- **Full Internationalization**: Complete support for 11 languages with proper fallback maps
+- **Auto-Update**: Automatically updates previously installed plugins
+- **Self-Exclusion**: Automatically excludes the tool itself from batch operations
+
+## Technical Highlights
+
+- **httpx Integration**: Modern async HTTP client for reliable, non-blocking requests
+- **Event Emitter Support**: Proper handling of OpenWebUI event injection with fallbacks
+- **Timeout Protection**: Wrapped frontend execution with timeout guards to prevent hanging
+- **Filtered List Consistency**: Uses single source of truth for confirmation and installation
+- **Error Localization**: All error messages are user-facing and properly localized across languages
+- **Deployment Resilience**: Intelligent base URL resolution handles domain, localhost, and containerized environments
+
+## Supported Repositories
+
+- **Default**: Fu-Jie/openwebui-extensions (strict validation)
+- **Custom**: Any GitHub repository with Python plugin files
+
+## Testing
+
+Comprehensive regression tests included:
+- Filtered installation list consistency
+- Missing event emitter handling
+- Confirmation timeout verification
+- Full failure scenarios
+- Localization completeness
+- Connection error debug logging and smart fallback
+
+All 6 tests pass successfully.
+
+## Documentation
+
+- English README with flow diagrams and usage examples
+- Chinese README (README_CN.md) with complete translations
+- Mirrored documentation for official docs site
+- Plugin index entries in both English and Chinese
+
+## Compatibility
+
+- OpenWebUI: 0.2.x - 0.8.x
+- Python: 3.9+
+- Dependencies: httpx (async HTTP client), pydantic (type validation)
+
+## Release Notes
+
+- This initial v1.0.0 release includes complete plugin infrastructure with smart deployment handling.
+- The plugin is designed to handle diverse deployment scenarios (domain, localhost, containerized) with minimal configuration.
+