refactor: complete project restructure - clean and professional

🎯 New Structure:
- landing/ (root) - Only Makefile, .gitignore, .woodpecker.yml
- helm/ - Kubernetes deployment (with argocd inside chart)
- docker/ - Docker build configs
- peikarband/ - All source code (src, tests, assets, config, tools, docs)

✅ Changes:
- Moved Docker files: build/docker/ → docker/
- Moved Helm charts: deploy/helm/ → helm/
- Moved ArgoCD: deploy/argocd/ → helm/peikarband/argocd/
- Moved all source code to peikarband/
- Removed duplicate files (7 files)
- Removed old empty directories

🐳 Docker Fixes:
- Added npm retry configuration (fetch-retry-mintimeout, etc.)
- Added 3-attempt retry mechanism for reflex export
- Fixed ECONNREFUSED errors
- Updated paths for new structure

📦 Config Updates:
- Makefile: Updated all paths (docker/, helm/, peikarband/)
- .woodpecker.yml: Updated dockerfile and context paths
- .gitignore: Updated data/ path

🧪 Tests:
- ✓ Helm lint passes
- ✓ All paths validated
- ✓ Structure verified

📊 Result:
- Before: 20+ files in root, scattered structure
- After: 3 files + 3 directories, clean and organized
- Production-ready ✨

peikarband/requirements-dev.txt

@@ -0,0 +1,58 @@
+# Peikarband Platform - Development Dependencies
+
+# Include core requirements
+-r requirements.txt
+
+# ============================================
+# Testing
+# ============================================
+pytest==7.4.3
+pytest-cov==4.1.0
+pytest-asyncio==0.21.1
+pytest-mock==3.12.0
+pytest-xdist==3.5.0
+factory-boy==3.3.0
+faker==20.1.0
+
+# ============================================
+# Code Quality
+# ============================================
+black==23.12.0
+flake8==6.1.0
+isort==5.13.2
+mypy==1.7.1
+pylint==3.0.3
+autopep8==2.0.4
+
+# ============================================
+# Type Stubs
+# ============================================
+types-redis==4.6.0.11
+types-requests==2.31.0.10
+types-python-dateutil==2.8.19.14
+
+# ============================================
+# Pre-commit Hooks
+# ============================================
+pre-commit==3.5.0
+
+# ============================================
+# Documentation
+# ============================================
+mkdocs==1.5.3
+mkdocs-material==9.5.2
+mkdocstrings[python]==0.24.0
+
+# ============================================
+# Development Tools
+# ============================================
+ipython==8.18.1
+ipdb==0.13.13
+rich==13.7.0
+
+# ============================================
+# Security Scanning
+# ============================================
+bandit==1.7.5
+safety==2.3.5
+