fix: deep GPU integration, fix all ruff/mypy issues, add .dockerignore

- Integrate GPU scoring inline into reasoning/multi_path.py (auto-uses GPU when available)
- Integrate GPU deduplication into multi_agent/consensus_engine.py
- Add semantic_search() method to memory/semantic_graph.py with GPU acceleration
- Integrate GPU training into self_improvement/training.py AutoTrainer
- Fix all 758 ruff lint issues (whitespace, import sorting, unused imports, ambiguous vars, undefined names)
- Fix all 40 mypy type errors across the codebase (no-any-return, union-attr, arg-type, etc.)
- Fix deprecated ruff config keys (select/ignore -> [tool.ruff.lint])
- Add .dockerignore to exclude .venv/, tests/, docs/ from Docker builds
- Add type hints and docstrings to verification/outcome.py
- Fix E402 import ordering in witness_agent.py
- Fix F821 undefined names in vector_pgvector.py and native.py
- Fix E741 ambiguous variable names in reflective.py and recommender.py

All 276 tests pass. 0 ruff errors. 0 mypy errors.

Co-Authored-By: Nakamoto, S <defi@defi-oracle.io>

fusionagi/schemas/task.py

@@ -4,7 +4,7 @@ from datetime import datetime
 from enum import Enum
 from typing import Any
 
-from pydantic import BaseModel, Field, field_validator, model_validator
+from pydantic import BaseModel, Field, field_validator
 
 from fusionagi._time import utc_now
 
@@ -41,7 +41,7 @@ VALID_TASK_TRANSITIONS: dict[TaskState, set[TaskState]] = {
 class Task(BaseModel):
     """
     Task representation for orchestration.
-    
+
     Includes validation for:
     - Non-empty task_id and goal
     - Timestamps for tracking
@@ -85,7 +85,7 @@ class Task(BaseModel):
     def transition_to(self, new_state: TaskState) -> "Task":
         """
         Create a new Task with the new state.
-        
+
         Raises:
             ValueError: If the transition is not allowed.
         """