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-dashboard.bat

@@ -0,0 +1,28 @@
+@echo off
+REM Start Next.js Dashboard
+
+echo.
+echo ========================================
+echo Starting Web Dashboard
+echo ========================================
+echo.
+
+cd /d "%~dp0..\..\web-dashboard"
+
+REM Check if node_modules exists
+if not exist "node_modules" (
+    echo Installing dependencies...
+    npm install
+    echo.
+)
+
+echo.
+echo ========================================
+echo Dashboard Starting on http://localhost:3000
+echo ========================================
+echo.
+echo Press Ctrl+C to stop
+echo.
+
+REM Start dashboard
+npm run dev