refactor(ai-markmap-agent): remove V2 agents, keep only V3

- Delete V2 agents: generator.py, optimizer.py, judge.py, writer.py, summarizer.py
- Delete V2 pipeline: src/graph.py
- Create translator.py (extracted from generator.py)
- Update agents/__init__.py to export V3 agents only
- Update graph_v3.py to import from translator.py

Author: lufftw

tools/ai-markmap-agent/src/agents/__init__.py

@@ -1,29 +1,17 @@
 """
 Agent modules for AI Markmap generation and optimization.
 
-V2 Agents:
-- GeneratorAgent: Generalist/Specialist Markmap generators
-- OptimizerAgent: Optimization and debate agents
-- SummarizerAgent: Round summarization
-- JudgeAgent: Final evaluation and voting
-
 V3 Agents (Structure Specification based):
 - PlannerAgent: Structure Specification generators
 - StrategistAgent: Content strategy optimization
 - IntegratorAgent: Suggestion integration
 - EvaluatorAgent: Structure evaluation
 - WriterAgentV3: Final Markmap rendering
+- TranslatorAgent: Language translation
 """
 
 from .base_agent import BaseAgent
 
-# V2 Agents
-from .generator import GeneralistAgent, SpecialistAgent, create_generators
-from .optimizer import OptimizerAgent, create_optimizers
-from .summarizer import SummarizerAgent
-from .judge import JudgeAgent, create_judges, aggregate_votes
-from .writer import WriterAgent, create_writer
-
 # V3 Agents
 from .planner import (
     StructurePlannerAgent,
@@ -51,22 +39,11 @@
     aggregate_evaluations,
 )
 from .writer_v3 import WriterAgentV3, create_writer_v3
+from .translator import TranslatorAgent, create_translators
 
 __all__ = [
     # Base
     "BaseAgent",
-    # V2 Agents
-    "GeneralistAgent",
-    "SpecialistAgent",
-    "create_generators",
-    "OptimizerAgent",
-    "create_optimizers",
-    "SummarizerAgent",
-    "JudgeAgent",
-    "create_judges",
-    "aggregate_votes",
-    "WriterAgent",
-    "create_writer",
     # V3 Agents
     "StructurePlannerAgent",
     "GeneralistPlannerAgent",
@@ -87,5 +64,6 @@
     "aggregate_evaluations",
     "WriterAgentV3",
     "create_writer_v3",
+    "TranslatorAgent",
+    "create_translators",
 ]
-