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-logs.bat

@@ -0,0 +1,19 @@
+@echo off
+REM XAUBot AI - Docker Logs Viewer (Windows)
+cd /d "%~dp0..\.."
+
+set SERVICE=%1
+set LINES=%2
+if "%LINES%"=="" set LINES=100
+
+if "%SERVICE%"=="" (
+    echo Viewing logs for all services...
+    echo Tip: Use 'docker-logs.bat SERVICE [LINES]' to view specific service
+    echo    Available: trading-api, dashboard, postgres, pgadmin
+    echo.
+    docker-compose logs -f --tail=%LINES%
+) else (
+    echo Viewing logs for: %SERVICE% last %LINES% lines
+    echo.
+    docker-compose logs -f --tail=%LINES% %SERVICE%
+)