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-add-dashboard.bat

@@ -0,0 +1,65 @@
+@echo off
+REM Add Dashboard & API to existing Docker setup
+cd /d "%~dp0..\.."
+
+echo.
+echo ========================================
+echo Adding Dashboard to Existing Setup
+echo ========================================
+echo.
+
+REM Check if .env exists
+if not exist .env (
+    echo WARNING: .env file not found!
+    echo Creating .env from template...
+    copy docker\.env.docker.example .env
+    echo.
+    echo Please edit .env with your MT5 credentials:
+    echo    - MT5_LOGIN
+    echo    - MT5_PASSWORD
+    echo    - MT5_SERVER
+    echo    - MT5_PATH
+    echo.
+    pause
+)
+
+REM Check if Docker is running
+docker info >nul 2>&1
+if errorlevel 1 (
+    echo ERROR: Docker is not running!
+    echo Please start Docker Desktop and try again.
+    pause
+    exit /b 1
+)
+
+echo [1/4] Checking existing services...
+docker ps --filter "name=trading_bot_db" --format "table {{.Names}}\t{{.Status}}"
+
+echo.
+echo [2/4] Building new services API and Dashboard...
+docker-compose build trading-api dashboard
+
+echo.
+echo [3/4] Starting new services...
+docker-compose up -d trading-api dashboard
+
+echo.
+echo [4/4] Checking all services...
+docker-compose ps
+
+echo.
+echo ========================================
+echo Dashboard Added Successfully!
+echo ========================================
+echo.
+echo Access Points:
+echo    Dashboard:  http://localhost:3000
+echo    API:        http://localhost:8000
+echo    API Docs:   http://localhost:8000/docs
+echo    Database:   localhost:5432 (already running)
+echo.
+echo View logs:
+echo    docker-compose logs -f dashboard
+echo    docker-compose logs -f trading-api
+echo.
+pause