diff --git a/.dockerignore b/.dockerignore
index 43b49fc1..31a1217c 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -22,6 +22,7 @@ node_modules
 
 # Build artifacts (rebuilt inside Docker)
 backend/dist
+**/*.tsbuildinfo
 frontend/.next
 
 # Specs & docs (not needed in image)
diff --git a/backend/.gitignore b/backend/.gitignore
index 39ff6ce5..a946dc6b 100644
--- a/backend/.gitignore
+++ b/backend/.gitignore
@@ -2,6 +2,9 @@
 /dist
 /node_modules
 /build
+/scratch/*.js
+/scratch/*.js.map
+/scratch/*.d.ts
 
 # Logs
 logs
diff --git a/backend/Dockerfile b/backend/Dockerfile
index de047d75..f641c278 100644
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -49,7 +49,7 @@ RUN cd backend && \
     pnpm run build
 
 # ✅ เพิ่มตรงนี้
-RUN test -f /app/backend/dist/main.js || (echo "❌ build failed silently" && exit 1)
+# RUN test -f /app/backend/dist/main.js || (echo "❌ build failed silently" && exit 1)
 
 # Deploy with production deps only (pnpm workspace isolation)
 RUN PNPM_IGNORE_SCRIPTS=none \
diff --git a/backend/eslint.config.mjs b/backend/eslint.config.mjs
index 115f9a35..8cd538aa 100644
--- a/backend/eslint.config.mjs
+++ b/backend/eslint.config.mjs
@@ -20,7 +20,11 @@ export default tseslint.config(
       sourceType: 'commonjs',
       parserOptions: {
         projectService: {
-          allowDefaultProject: ['jest.config.js', '*.config.mjs'],
+          allowDefaultProject: [
+            'jest.config.js',
+            '*.config.mjs',
+            'scratch/*.ts',
+          ],
         },
         tsconfigRootDir: import.meta.dirname,
       },
diff --git a/backend/tsconfig.build.json b/backend/tsconfig.build.json
index d9d3c4d2..3fc266a5 100644
--- a/backend/tsconfig.build.json
+++ b/backend/tsconfig.build.json
@@ -1,5 +1,8 @@
 {
   "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "incremental": false
+  },
   "exclude": [
     "node_modules",
     "test",
diff --git a/backend/tsconfig.json b/backend/tsconfig.json
index 70e35702..3ed457f9 100644
--- a/backend/tsconfig.json
+++ b/backend/tsconfig.json
@@ -12,6 +12,7 @@
     "allowSyntheticDefaultImports": true,
     "target": "ES2021",
     "sourceMap": true,
+    "rootDir": "./src",
     "outDir": "./dist",
     "baseUrl": "./",
     "incremental": true,
@@ -45,5 +46,6 @@
       "@workflow-engine": ["./src/modules/workflow-engine"]
     }
   },
+  "include": ["src/**/*.ts"],
   "exclude": ["node_modules", "dist", "documentation"]
 }