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/multi_agent/__init__.py

@@ -1,25 +1,25 @@
 """Multi-agent: parallel, delegation, pooling, coordinator, adversarial reviewer, consensus."""
 
-from fusionagi.multi_agent.parallel import (
-    execute_steps_parallel,
-    execute_steps_parallel_wave,
-    ParallelStepResult,
+from fusionagi.multi_agent.consensus import arbitrate, consensus_vote
+from fusionagi.multi_agent.consensus_engine import (
+    CollectedClaim,
+    collect_claims,
+    run_consensus,
 )
-from fusionagi.multi_agent.pool import AgentPool, PooledExecutorRouter
-from fusionagi.multi_agent.supervisor import SupervisorAgent
+from fusionagi.multi_agent.coordinator import CoordinatorAgent
 from fusionagi.multi_agent.delegation import (
-    delegate_sub_tasks,
     DelegationConfig,
     SubTask,
     SubTaskResult,
+    delegate_sub_tasks,
 )
-from fusionagi.multi_agent.coordinator import CoordinatorAgent
-from fusionagi.multi_agent.consensus import consensus_vote, arbitrate
-from fusionagi.multi_agent.consensus_engine import (
-    run_consensus,
-    collect_claims,
-    CollectedClaim,
+from fusionagi.multi_agent.parallel import (
+    ParallelStepResult,
+    execute_steps_parallel,
+    execute_steps_parallel_wave,
 )
+from fusionagi.multi_agent.pool import AgentPool, PooledExecutorRouter
+from fusionagi.multi_agent.supervisor import SupervisorAgent
 
 __all__ = [
     "execute_steps_parallel",