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-start.bat

@@ -0,0 +1,92 @@
+@echo off
+REM XAUBot AI - Docker Start Script (Windows)
+cd /d "%~dp0..\.."
+
+echo.
+echo Starting XAUBot AI Docker Services...
+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 .env created. Please edit it 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 Docker is running
+echo.
+
+REM Parse arguments
+set PROFILE_FLAG=
+if "%1"=="--admin" set PROFILE_FLAG=--profile admin
+if "%1"=="-a" set PROFILE_FLAG=--profile admin
+
+if defined PROFILE_FLAG (
+    echo Starting with pgAdmin admin profile...
+) else (
+    echo Starting core services postgres, api, dashboard...
+    echo Tip: Use 'docker-start.bat --admin' to include pgAdmin
+)
+
+echo.
+echo Pulling latest base images...
+docker-compose pull
+
+echo.
+echo Building services...
+docker-compose build
+
+echo.
+echo Starting services...
+docker-compose %PROFILE_FLAG% up -d
+
+echo.
+echo Waiting for services to be healthy...
+timeout /t 10 /nobreak >nul
+
+echo.
+echo Checking service health...
+docker-compose ps
+
+echo.
+echo ========================================
+echo Services started 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
+
+if defined PROFILE_FLAG (
+    echo    pgAdmin:    http://localhost:5050
+)
+
+echo.
+echo Useful Commands:
+echo    View logs:       docker-compose logs -f
+echo    View API logs:   docker-compose logs -f trading-api
+echo    Stop services:   docker-compose down
+echo    Restart:         docker-compose restart
+echo.
+echo Full documentation: docker\docs\DOCKER.md
+echo.
+pause