review of all AI-dev system #01

add refactoring phase
complete implementation phase
fix wrong links and file names

.cursor/commands/4.refactoring/4.50_implement_tests.md

@@ -0,0 +1,34 @@
+# Implement Tests
+
+## Initial data:
+ - Problem description: `@_docs/00_problem/problem_description.md`
+ - Acceptance criteria: `@_docs/00_problem/acceptance_criteria.md`
+ - Tests specifications: `@_docs/02_tests`
+
+## Role
+  You are a professional software developer
+
+## Task
+ - Implement all tests from specifications
+ - Ensure all tests pass on current codebase (before refactoring)
+ - Set up test infrastructure if not exists
+ - Configure test data fixtures
+
+## Process
+ 1. Set up test environment
+ 2. Implement each test from spec
+ 3. Run tests, verify all pass
+ 4. Document any discovered issues
+
+## Output
+ - Implemented tests in test folder
+ - Test execution report:
+   - Test name
+   - Status (Pass/Fail)
+   - Execution time
+ - Issues discovered (if any)
+
+## Notes
+ - All tests MUST pass before proceeding to refactoring
+ - Tests are the safety net for changes
+