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 ✨

docker/Dockerfile.base

@@ -0,0 +1,54 @@
+# Base Image for Peikarband Projects
+# 
+# This Dockerfile should be in a SEPARATE repository: peikarband/base
+# It's kept here for reference only.
+#
+# Purpose: Pre-installed build tools (Python, Node.js, bun, gcc, etc.)
+# Registry: hub.peikarband.ir/peikarband/base:latest
+# 
+# This image is built once and cached, making subsequent builds much faster
+# All Peikarband projects should use this base image
+
+ARG PYTHON_VERSION=3.11
+ARG NODE_VERSION=20
+
+FROM python:${PYTHON_VERSION}-slim AS base
+
+LABEL maintainer="Peikarband Team <dev@peikarband.ir>"
+LABEL description="Base image with Python, Node.js, bun, and build tools"
+
+WORKDIR /build
+
+# Install build dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    gcc \
+    g++ \
+    make \
+    curl \
+    gnupg \
+    ca-certificates \
+    unzip \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Node.js (required for Reflex)
+RUN curl -fsSL https://deb.nodesource.com/setup_${NODE_VERSION}.x | bash - \
+    && apt-get install -y --no-install-recommends nodejs \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install bun (required by Reflex for frontend build)
+# Retry mechanism for network issues
+RUN set -ex && \
+    for i in 1 2 3 4 5; do \
+        curl -fsSL https://bun.sh/install | bash && break || \
+        (echo "Attempt $i failed, retrying in 5 seconds..." && sleep 5); \
+    done || (echo "Failed to install bun after 5 attempts" && exit 1)
+
+# Add bun to PATH
+ENV PATH="/root/.bun/bin:${PATH}"
+
+# Verify installations
+RUN python --version && \
+    node --version && \
+    npm --version && \
+    bun --version
+