优化docker相关

.dockerignore

@@ -1,13 +1,27 @@
 .git
+.gitignore
 .DS_Store
 .env
-.env.local
+.env.*
+.snow
 
+# docs & markdown (top-level only, don't exclude subservice READMEs)
+docs/
+*.md
+apps/*/*.md
+
+# build artifacts
 apps/*/node_modules
 apps/*/dist
 apps/*/.vite
+
+# backend runtime data
 apps/backend/data/*.db
 apps/backend/data/*.db-shm
 apps/backend/data/*.db-wal
 apps/backend/data/browser-sessions
 apps/backend/data/redeem-screenshots
+apps/backend/.npm-cache
+
+# deploy data (server only)
+deploy/data/