Initial commit: Clean DSS implementation

Migrated from design-system-swarm with fresh git history.
Old project history preserved in /home/overbits/apps/design-system-swarm

Core components:
- MCP Server (Python FastAPI with mcp 1.23.1)
- Claude Plugin (agents, commands, skills, strategies, hooks, core)
- DSS Backend (dss-mvp1 - token translation, Figma sync)
- Admin UI (Node.js/React)
- Server (Node.js/Express)
- Storybook integration (dss-mvp1/.storybook)

Self-contained configuration:
- All paths relative or use DSS_BASE_PATH=/home/overbits/dss
- PYTHONPATH configured for dss-mvp1 and dss-claude-plugin
- .env file with all configuration
- Claude plugin uses ${CLAUDE_PLUGIN_ROOT} for portability

Migration completed: $(date)
🤖 Clean migration with full functionality preserved

tools/immutability/pre_commit_hook.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+# DSS Immutability Guard - Simplified Version
+# Protects core principle files from accidental modification
+
+echo "🛡️  DSS Immutability Check..."
+
+# List of protected files (core principles only)
+PROTECTED_FILES=(
+  ".knowledge/dss-principles.json"
+  ".knowledge/dss-architecture.json"
+  ".clauderc"
+)
+
+# Check if any protected files are being modified
+MODIFIED_PROTECTED=()
+for file in "${PROTECTED_FILES[@]}"; do
+  if git diff --cached --name-only | grep -q "^${file}$"; then
+    MODIFIED_PROTECTED+=("$file")
+  fi
+done
+
+# If protected files are modified, require confirmation
+if [ ${#MODIFIED_PROTECTED[@]} -gt 0 ]; then
+  echo ""
+  echo "⚠️  WARNING: You are modifying protected core files:"
+  for file in "${MODIFIED_PROTECTED[@]}"; do
+    echo "  - $file"
+  done
+  echo ""
+  echo "These files define DSS core architecture and should rarely change."
+  echo ""
+  echo "To proceed with this commit, set: ALLOW_CORE_CHANGES=true"
+  echo "Example: ALLOW_CORE_CHANGES=true git commit -m 'your message'"
+  echo ""
+
+  # Check if user has explicitly allowed the change
+  if [ "$ALLOW_CORE_CHANGES" != "true" ]; then
+    echo "❌ Commit blocked. Set ALLOW_CORE_CHANGES=true to proceed."
+    exit 1
+  fi
+
+  echo "✅ ALLOW_CORE_CHANGES=true detected. Proceeding with commit."
+fi
+
+echo "✅ Immutability check passed."
+exit 0