feat: restore all 30 slash commands with comprehensive documentation

Restored 26 additional commands from commit d4a17fc, bringing total from 5 to 30 commands.

## New Commands Added (26):
- /analyze - Code and architecture analysis
- /brainstorm - Structured brainstorming sessions
- /build - Build and compilation workflows
- /business-panel - Multi-expert business analysis
- /cleanup - Code cleanup and refactoring
- /design - System design and architecture
- /document - Documentation generation
- /estimate - Effort and time estimation
- /explain - Code explanation
- /git - Git operations and workflows
- /help - Command help and usage
- /implement - Implementation workflows
- /improve - Code improvement suggestions
- /index - Project indexing (alias for index-repo)
- /load - Load saved sessions
- /pm - Project management workflows
- /reflect - Reflection and retrospectives
- /save - Save current session
- /select-tool - Tool selection guidance
- /spawn - Spawn parallel tasks
- /spec-panel - Multi-expert specification analysis
- /task - Task management
- /test - Testing workflows
- /troubleshoot - Debugging and troubleshooting
- /workflow - Custom workflow automation

## Documentation Updates:
- Created docs/reference/commands-list.md with categorized command reference
- Updated README.md with expandable 30-command list
- Updated README-zh.md with Chinese translations
- Updated README-ja.md with Japanese translations
- Updated README-kr.md with Korean translations
- Changed statistics: "3 plugins" → "30 commands"
- Added command categories: Planning & Design, Development, Testing & Quality,
  Documentation, Version Control, Project Management, Research & Analysis, Utilities

## Files Changed:
- 60 files changed, 7930 insertions(+), 267 deletions(-)
- Added 26 commands to plugins/superclaude/commands/
- Added 26 commands to src/superclaude/commands/
- Created comprehensive command documentation

Commands restored from: d4a17fc (superclaude/commands/)
Total: 30 commands now available

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

plugins/superclaude/commands/test.md

@@ -0,0 +1,93 @@
+---
+name: test
+description: "Execute tests with coverage analysis and automated quality reporting"
+category: utility
+complexity: enhanced
+mcp-servers: [playwright]
+personas: [qa-specialist]
+---
+
+# /sc:test - Testing and Quality Assurance
+
+## Triggers
+- Test execution requests for unit, integration, or e2e tests
+- Coverage analysis and quality gate validation needs
+- Continuous testing and watch mode scenarios
+- Test failure analysis and debugging requirements
+
+## Usage
+```
+/sc:test [target] [--type unit|integration|e2e|all] [--coverage] [--watch] [--fix]
+```
+
+## Behavioral Flow
+1. **Discover**: Categorize available tests using runner patterns and conventions
+2. **Configure**: Set up appropriate test environment and execution parameters
+3. **Execute**: Run tests with monitoring and real-time progress tracking
+4. **Analyze**: Generate coverage reports and failure diagnostics
+5. **Report**: Provide actionable recommendations and quality metrics
+
+Key behaviors:
+- Auto-detect test framework and configuration
+- Generate comprehensive coverage reports with metrics
+- Activate Playwright MCP for e2e browser testing
+- Provide intelligent test failure analysis
+- Support continuous watch mode for development
+
+## MCP Integration
+- **Playwright MCP**: Auto-activated for `--type e2e` browser testing
+- **QA Specialist Persona**: Activated for test analysis and quality assessment
+- **Enhanced Capabilities**: Cross-browser testing, visual validation, performance metrics
+
+## Tool Coordination
+- **Bash**: Test runner execution and environment management
+- **Glob**: Test discovery and file pattern matching
+- **Grep**: Result parsing and failure analysis
+- **Write**: Coverage reports and test summaries
+
+## Key Patterns
+- **Test Discovery**: Pattern-based categorization → appropriate runner selection
+- **Coverage Analysis**: Execution metrics → comprehensive coverage reporting
+- **E2E Testing**: Browser automation → cross-platform validation
+- **Watch Mode**: File monitoring → continuous test execution
+
+## Examples
+
+### Basic Test Execution
+```
+/sc:test
+# Discovers and runs all tests with standard configuration
+# Generates pass/fail summary and basic coverage
+```
+
+### Targeted Coverage Analysis
+```
+/sc:test src/components --type unit --coverage
+# Unit tests for specific directory with detailed coverage metrics
+```
+
+### Browser Testing
+```
+/sc:test --type e2e
+# Activates Playwright MCP for comprehensive browser testing
+# Cross-browser compatibility and visual validation
+```
+
+### Development Watch Mode
+```
+/sc:test --watch --fix
+# Continuous testing with automatic simple failure fixes
+# Real-time feedback during development
+```
+
+## Boundaries
+
+**Will:**
+- Execute existing test suites using project's configured test runner
+- Generate coverage reports and quality metrics
+- Provide intelligent test failure analysis with actionable recommendations
+
+**Will Not:**
+- Generate test cases or modify test framework configuration
+- Execute tests requiring external services without proper setup
+- Make destructive changes to test files without explicit permission