feat: add comprehensive environment and trending analysis prompt templates

Environment Analysis Templates:
- analyze_environment_dependencies: Analyze current Python environment and dependencies
- check_outdated_packages: Check for outdated packages with update priorities
- generate_update_plan: Create comprehensive package update plans with strategies

Trending Analysis Templates:
- analyze_daily_trends: Analyze daily PyPI download trends and popular packages
- find_trending_packages: Discover trending packages over different time periods
- track_package_updates: Track recent package updates and releases

Key Features:
- Follow standard MCP workflow with {{parameter}} template variables
- Support environment analysis (uvx pip list integration ready)
- Enable trending package discovery and popularity analysis
- Provide structured update planning with different strategies
- Include comprehensive parameter validation and documentation
- Add usage examples and integration guides

All templates follow the established MCP prompt workflow:
1. User calls tool → MCP client sends request
2. Tool function executes → Collects necessary data and parameters
3. Call Prompt generator → Pass parameters to corresponding generator
4. Load template → Get template with {{parameter}} placeholders
5. Parameter replacement → Replace {{parameter_name}} with actual values
6. Return final prompt → As tool's response back to AI

Updated documentation and README with new template examples and usage patterns.

Signed-off-by: longhao <hal.long@outlook.com>

README.md

@@ -217,6 +217,16 @@ The server provides the following MCP tools:
 17. **plan_package_migration** - Generate comprehensive package migration plan prompts
 18. **generate_migration_checklist** - Generate detailed migration checklist prompts
 
+### Environment Analysis Templates
+19. **analyze_environment_dependencies** - Generate prompts for analyzing current environment dependencies
+20. **check_outdated_packages** - Generate prompts for checking outdated packages with update priorities
+21. **generate_update_plan** - Generate prompts for creating comprehensive package update plans
+
+### Trending Analysis Templates
+22. **analyze_daily_trends** - Generate prompts for analyzing daily PyPI download trends
+23. **find_trending_packages** - Generate prompts for discovering trending packages over time periods
+24. **track_package_updates** - Generate prompts for tracking recent package updates and releases
+
 > 📖 **Learn more about prompt templates**: See [PROMPT_TEMPLATES.md](PROMPT_TEMPLATES.md) for detailed documentation and examples.
 
 ## Usage Examples
@@ -254,6 +264,18 @@ Once configured in your MCP client (Claude Desktop, Cline, Cursor, Windsurf), yo
 - "Help me resolve dependency conflicts with a structured prompt"
 - "Generate a security audit prompt for my production packages"
 
+### Environment Analysis
+- "Analyze my current Python environment dependencies and check for outdated packages"
+- "Check which packages in my environment have security updates available"
+- "Generate an update plan for my production environment with conservative strategy"
+- "Help me identify packages that need immediate updates vs. planned updates"
+
+### Trending Analysis
+- "What are the most downloaded Python packages today?"
+- "Show me trending packages in the machine learning domain this week"
+- "Track recent security updates and new package releases"
+- "Find rising packages in web development that I should consider"
+
 ### Example Conversations
 
 **User**: "Check if Django 4.2 is compatible with Python 3.9"