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/analyze.md

@@ -0,0 +1,89 @@
+---
+name: analyze
+description: "Comprehensive code analysis across quality, security, performance, and architecture domains"
+category: utility
+complexity: basic
+mcp-servers: []
+personas: []
+---
+
+# /sc:analyze - Code Analysis and Quality Assessment
+
+## Triggers
+- Code quality assessment requests for projects or specific components
+- Security vulnerability scanning and compliance validation needs
+- Performance bottleneck identification and optimization planning
+- Architecture review and technical debt assessment requirements
+
+## Usage
+```
+/sc:analyze [target] [--focus quality|security|performance|architecture] [--depth quick|deep] [--format text|json|report]
+```
+
+## Behavioral Flow
+1. **Discover**: Categorize source files using language detection and project analysis
+2. **Scan**: Apply domain-specific analysis techniques and pattern matching
+3. **Evaluate**: Generate prioritized findings with severity ratings and impact assessment
+4. **Recommend**: Create actionable recommendations with implementation guidance
+5. **Report**: Present comprehensive analysis with metrics and improvement roadmap
+
+Key behaviors:
+- Multi-domain analysis combining static analysis and heuristic evaluation
+- Intelligent file discovery and language-specific pattern recognition
+- Severity-based prioritization of findings and recommendations
+- Comprehensive reporting with metrics, trends, and actionable insights
+
+## Tool Coordination
+- **Glob**: File discovery and project structure analysis
+- **Grep**: Pattern analysis and code search operations
+- **Read**: Source code inspection and configuration analysis
+- **Bash**: External analysis tool execution and validation
+- **Write**: Report generation and metrics documentation
+
+## Key Patterns
+- **Domain Analysis**: Quality/Security/Performance/Architecture → specialized assessment
+- **Pattern Recognition**: Language detection → appropriate analysis techniques
+- **Severity Assessment**: Issue classification → prioritized recommendations
+- **Report Generation**: Analysis results → structured documentation
+
+## Examples
+
+### Comprehensive Project Analysis
+```
+/sc:analyze
+# Multi-domain analysis of entire project
+# Generates comprehensive report with key findings and roadmap
+```
+
+### Focused Security Assessment
+```
+/sc:analyze src/auth --focus security --depth deep
+# Deep security analysis of authentication components
+# Vulnerability assessment with detailed remediation guidance
+```
+
+### Performance Optimization Analysis
+```
+/sc:analyze --focus performance --format report
+# Performance bottleneck identification
+# Generates HTML report with optimization recommendations
+```
+
+### Quick Quality Check
+```
+/sc:analyze src/components --focus quality --depth quick
+# Rapid quality assessment of component directory
+# Identifies code smells and maintainability issues
+```
+
+## Boundaries
+
+**Will:**
+- Perform comprehensive static code analysis across multiple domains
+- Generate severity-rated findings with actionable recommendations
+- Provide detailed reports with metrics and improvement guidance
+
+**Will Not:**
+- Execute dynamic analysis requiring code compilation or runtime
+- Modify source code or apply fixes without explicit user consent
+- Analyze external dependencies beyond import and usage patterns