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/scripts/start-api.bat

@@ -0,0 +1,35 @@
+@echo off
+REM Start Trading API (FastAPI)
+
+echo.
+echo ========================================
+echo Starting Trading API
+echo ========================================
+echo.
+
+cd /d "%~dp0..\.."
+
+REM Check if virtual environment exists
+if not exist "venv" (
+    echo Creating virtual environment...
+    python -m venv venv
+    echo.
+)
+
+REM Activate virtual environment
+call venv\Scripts\activate.bat
+
+REM Install/update dependencies
+echo Installing dependencies...
+pip install -q fastapi uvicorn pydantic python-dotenv aiohttp
+
+echo.
+echo ========================================
+echo API Starting on http://localhost:8000
+echo ========================================
+echo.
+echo Press Ctrl+C to stop
+echo.
+
+REM Start the API
+python web-dashboard\api\main.py