refactor: move data.db and uploads to storage/ folder

- Changed database path to ./storage/data.db
- Changed uploads path to ./storage/uploads
- Updated Dockerfile to create storage/uploads dir (not uploads)
- Updated entrypoint.sh to check /app/storage/data.db
- Removed COPY of uploads from builder to runner

Now all persistent data is in /app/storage/:
- /app/storage/data.db (SQLite database)
- /app/storage/uploads/ (uploaded media)

Easypanel mount: emdash-storage → /app/storage

To update EmDash: change version in package.json → push → redeploy

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

entrypoint.sh

@@ -2,15 +2,21 @@
 # Wait for volume mount to settle (Easypanel may mount after container starts)
 sleep 3
 
-# Check if data.db exists and has content
-# Using file size as backup check (empty DB is ~8KB, seeded DB is much larger)
-DB_SIZE=$(stat -c%s /app/data.db 2>/dev/null || stat -f%z /app/data.db 2>/dev/null || echo "0")
+# Check if data.db exists in storage folder and has content
+DB_PATH="/app/storage/data.db"
+UPLOADS_PATH="/app/storage/uploads"
 
-if [ -f /app/data.db ] && [ "$DB_SIZE" -gt 1000 ]; then
-  # DB exists and has size > 1KB, check if it has content
-  if sqlite3 /app/data.db "SELECT COUNT(*) FROM content" 2>/dev/null | grep -q "^[1-9]"; then
-    echo "Database exists with content, starting normally..."
-    exec node ./dist/server/entry.mjs
+# Ensure storage directories exist
+mkdir -p "$UPLOADS_PATH"
+
+# Check if data.db exists and has content
+if [ -f "$DB_PATH" ]; then
+  DB_SIZE=$(stat -c%s "$DB_PATH" 2>/dev/null || stat -f%z "$DB_PATH" 2>/dev/null || echo "0")
+  if [ "$DB_SIZE" -gt 1000 ]; then
+    if sqlite3 "$DB_PATH" "SELECT COUNT(*) FROM content" 2>/dev/null | grep -q "^[1-9]"; then
+      echo "Database exists with content, starting normally..."
+      exec node ./dist/server/entry.mjs
+    fi
   fi
 fi