Introduce a centralized tool registry system for the assistant to manage
executable operations, permissions, and tool catalogs. This refactors
the assistant dispatch logic from a monolithic approach to a modular,
decorator-based registry.
Key changes:
- Implement `AssistantToolRegistry` to handle tool registration,
permission checks, and safe operation identification.
- Add a suite of new assistant tools: backup, commit, branch creation,
deployment, health summary, environment listing, LLM operations,
maintenance, migration, and dashboard searching.
- Refactor `_dispatch.py` and `_llm_planner.py` to utilize the new
registry for intent resolution and tool catalog building.
- Enhance the LLM planner to support more descriptive clarification
responses in Russian when intents are ambiguous.
- Update the frontend to support the new tool-based workflow, including
improved i18n labels for assistant operations and a new step-by-step
wizard for the migration page.
- Add ADR-0008 to document the architectural decision for the tool
registry.
