"""Create recovery_planner
Generated by Phi-Octopus Eden
2025-11-07 16:16:46.459595
"""

```python
from typing import List

class RecoveryPlanner:
    """
    A class for managing recovery plans in case of system errors.
    
    Attributes:
        issues: A list of error codes that need to be addressed.
        solutions: A dictionary mapping each issue to its corresponding solution.
        plan: A list of tuples, where each tuple contains an issue and its assigned solution.
        
    Methods:
        add_issue: Adds a new issue to the recovery planner.
        assign_solution: Assigns a specific solution to an issue.
        generate_plan: Generates a comprehensive recovery plan based on current issues and solutions.
        execute_plan: Executes the generated plan step by step, simulating real-life scenario.
    """
    
    def __init__(self):
        self.issues: List[str] = []
        self.solutions: dict = {}
        self.plan: list = []

    def add_issue(self, issue_code: str) -> None:
        """Add a new error code to the recovery planner."""
        if issue_code not in self.issues:
            self.issues.append(issue_code)
    
    def assign_solution(self, issue_code: str, solution: str) -> bool:
        """Assign a specific solution to an issue."""
        if issue_code in self.issues:
            self.solutions[issue_code] = solution
            return True
        return False

    def generate_plan(self) -> List[tuple]:
        """Generate and return the recovery plan as a list of tuples (issue, solution)."""
        self.plan = [(issue, self.solutions.get(issue)) for issue in self.issues]
        return self.plan
    
    def execute_plan(self) -> None:
        """Simulate executing the recovery plan step by step."""
        print("Executing Recovery Plan:")
        for issue, solution in self.generate_plan():
            if solution:
                print(f"Handling issue: {issue}, Solution Applied: {solution}")
            else:
                print(f"No solution available for issue: {issue}")

# Example usage
recovery_planner = RecoveryPlanner()
recovery_planner.add_issue('ERR01')
recovery_planner.assign_solution('ERR01', 'Restart the server.')
recovery_planner.add_issue('ERR02')
recovery_planner.assign_solution('ERR02', 'Check network connectivity.')

recovery_planner.execute_plan()
```

This code provides a basic implementation of a recovery planner that manages issues and their corresponding solutions, generates a plan to address these issues, and simulates the execution of this plan.