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 ✨

.woodpecker.yml

@@ -0,0 +1,46 @@
+
+pipeline:
+  publish_landing:
+    image: woodpeckerci/plugin-docker-buildx
+    settings:
+      # تنظیمات ریجیستری Harbor
+      registry: hub.peikarband.ir
+      repo: hub.peikarband.ir/peikarband/landing
+      username:
+        from_secret: HARBOR_USERNAME
+      password:
+        from_secret: HARBOR_PASSWORD
+      
+      # تگ‌گذاری
+      tags:
+        - latest
+        - ${CI_COMMIT_SHA:0:8}
+      
+      dockerfile: docker/Dockerfile
+      context: peikarband/
+      platforms: linux/amd64
+    
+      build_args:
+        - VERSION=${CI_COMMIT_SHA:0:8}
+        - BUILD_DATE=${CI_PIPELINE_CREATED}
+        - PYTHON_VERSION=3.11
+        - NODE_VERSION=20
+      
+      labels:
+        - org.opencontainers.image.created=${CI_PIPELINE_CREATED}
+        - org.opencontainers.image.source=${CI_REPO_LINK}
+        - org.opencontainers.image.url=${CI_REPO_LINK}
+        - org.opencontainers.image.revision=${CI_COMMIT_SHA}
+        - org.opencontainers.image.version=${CI_COMMIT_SHA:0:8}
+        - org.opencontainers.image.title=Peikarband Landing
+        - org.opencontainers.image.description=Peikarband hosting platform landing page
+      
+      cache: inline
+      provenance: true
+      push: true 
+      
+    when:
+      - event: [push, tag, manual]
+        branch: main # معمولاً فقط روی برنچ اصلی پوش انجام می‌شود
+
+    timeout: 30m