refactor: reorganize project structure — consolidate Docker files, clean root

- Delete temp files: _tmp_analysis.py, nul, dashboard_screenshot.png
- Move ea/ to archive/ea/ (deprecated)
- Move 12 Docker helper scripts (.bat/.sh) to docker/scripts/
- Move 5 Docker docs to docker/docs/
- Move .env.docker.example, requirements-docker.txt to docker/
- Update all scripts with cd to project root for correct path resolution
- Update all doc references to new paths
- Update .gitignore with bot.pid, bot_output.log, *.png patterns
- Update CLAUDE.md, README.md directory trees

Root reduced from ~40 files to 12 essential files.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docker/requirements-docker.txt

@@ -0,0 +1,38 @@
+# Docker-compatible requirements (Linux)
+# Note: MetaTrader5 is Windows-only, excluded from Docker build
+
+# Core Data Engine (Rust-based, NOT Pandas)
+polars>=1.37.0
+pyarrow>=15.0.0
+
+# Machine Learning
+xgboost>=2.1.0
+scikit-learn>=1.4.0
+hmmlearn>=0.3.3
+joblib>=1.4.0
+
+# Asynchronous Processing
+asyncio-throttle>=1.0.2
+
+# Logging and Monitoring
+loguru>=0.7.2
+
+# Environment Variables
+python-dotenv>=1.0.1
+
+# Numerical Computing
+numpy>=1.26.0
+
+# HTTP Client
+aiohttp>=3.9.0
+
+# PostgreSQL Database
+psycopg2-binary>=2.9.9
+
+# FastAPI for Web Dashboard API
+fastapi>=0.109.0
+uvicorn[standard]>=0.27.0
+pydantic>=2.6.0
+
+# CORS middleware
+python-multipart>=0.0.6