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/docker-status.bat

@@ -0,0 +1,56 @@
+@echo off
+REM Check status of all trading bot services
+cd /d "%~dp0..\.."
+
+echo.
+echo ========================================
+echo Trading Bot Docker Services Status
+echo ========================================
+echo.
+
+docker-compose ps
+
+echo.
+echo ========================================
+echo Service Health Checks
+echo ========================================
+echo.
+
+echo [Database]
+docker exec trading_bot_db pg_isready -U trading_bot 2>nul
+if %errorlevel%==0 (
+    echo   Status: HEALTHY
+) else (
+    echo   Status: NOT RUNNING
+)
+
+echo.
+echo [API]
+curl -s http://localhost:8000/api/health >nul 2>&1
+if %errorlevel%==0 (
+    echo   Status: HEALTHY
+    echo   URL: http://localhost:8000
+) else (
+    echo   Status: NOT RUNNING or UNHEALTHY
+)
+
+echo.
+echo [Dashboard]
+curl -s http://localhost:3000 >nul 2>&1
+if %errorlevel%==0 (
+    echo   Status: HEALTHY
+    echo   URL: http://localhost:3000
+) else (
+    echo   Status: NOT RUNNING or UNHEALTHY
+)
+
+echo.
+echo ========================================
+echo Quick Commands
+echo ========================================
+echo   View logs:     docker-compose logs -f
+echo   Restart:       docker-compose restart
+echo   Stop all:      docker-compose stop
+echo   Start all:     docker-compose up -d
+echo.
+pause