This commit addresses a large number of pending tasks from `Tasks.md`, focusing on architectural improvements, documentation consistency, and the introduction of a testing framework.
Key changes include:
- **Button Dispatcher Agent (`[IMP-003]`):** Refactored the button handling logic into a dedicated `ButtonDispatcher` class. This decouples the dispatcher from handlers and improves modularity.
- **Documentation Consistency (`[DOC-001]`):** Updated `AGENTS.md` and `Agent_skills.md` to be consistent with the current codebase, removing outdated information and "Fallo Actual" notes.
- **Code Quality Tools (`[TEST-002]`):** Added `black` to the project for consistent code formatting and applied it to the entire `bot/` directory.
- **Initial Test Coverage (`[TEST-001]`):** Created a `tests/` directory and implemented a comprehensive suite of unit tests for the critical `FlowEngine` module, using Python's `unittest` framework.
- **Task Verification:** Investigated and confirmed that tasks `[ARCH-003]` (Code Duplication), `[PERF-003]` (Flow Engine Memory Usage), and `[PERF-002]` (Voice File Memory Management) were already resolved by previous refactoring.
- **Updated `Tasks.md`:** Updated the status of all addressed tasks to reflect the project's current state.
- Upgrade Python to 3.11 and update dependencies.
- Refactor main.py to isolate business logic.
- Fix bugs in flow_engine.py and printer.py.
- Improve database connection handling.
- Standardize error handling.
- Verify secret management.
