diff --git a/.flake8 b/.flake8
deleted file mode 100644
index e97d7389f..000000000
--- a/.flake8
+++ /dev/null
@@ -1,14 +0,0 @@
-[flake8]
-max-line-length = 120
-exclude =
-    .git,
-    .cache,
-    __pycache__,
-    .venv,
-    venv,
-    node_modules,
-    alembic
-
-per-file-ignores =
-    tests/integration/*:F821
-    tests/unit/*:F821
diff --git a/.gitea/workflows/ci-cd.yml b/.gitea/workflows/ci-cd.yml
index b75c1772a..b7ea51473 100755
--- a/.gitea/workflows/ci-cd.yml
+++ b/.gitea/workflows/ci-cd.yml
@@ -435,7 +435,7 @@ jobs:
       run: "set -eu\nNPM_CACHE_VOLUME=\"xiaoxia-npm-cache\"\nif ! docker volume inspect \"$NPM_CACHE_VOLUME\" >/dev/null 2>&1; then\n  docker volume create \"$NPM_CACHE_VOLUME\" >/dev/null\n  echo \"Created npm cache volume: $NPM_CACHE_VOLUME\"\nfi\n\ndocker run --rm \\\n  -v \"$PWD:/workspace\" \\\n  -v \"$NPM_CACHE_VOLUME:/workspace/apps/web/node_modules\" -w /workspace/apps/web \\\n  docker.m.daocloud.io/library/node:20 \\\n  sh -lc 'PACKAGE_LOCK_HASH=$(md5sum package-lock.json 2>/dev/null | cut -d\" \" -f1)\nCACHE_HASH_FILE=\"node_modules/.package-lock-hash\"\nCACHE_VALID=false\nif [ -f \"$CACHE_HASH_FILE\" ] && [ \"$(cat \"$CACHE_HASH_FILE\")\" = \"$PACKAGE_LOCK_HASH\" ] && [ -x \"node_modules/.bin/eslint\" ] && [ -x \"node_modules/.bin/tsc\" ] && [ -x \"node_modules/.bin/prettier\" ] && [ -x \"node_modules/.bin/vitest\" ]; then\n  CACHE_VALID=true\n  echo \"Cache hit: dependencies valid, skipping npm ci\"\nfi\nif [ \"$CACHE_VALID\" = \"false\" ]; then\n  echo \"Cache miss or invalid: running npm ci...\"\n  if ! npm ci --include=dev; then\n    echo \"npm ci failed, cleaning node_modules and retrying...\"\n    rm -rf node_modules\n    mkdir -p node_modules\n    npm ci --include=dev\n  fi\n  # Post-install integrity check: verify all critical tools exist\n  if [ ! -x \"node_modules/.bin/eslint\" ] || [ ! -x \"node_modules/.bin/tsc\" ] || [ ! -x \"node_modules/.bin/prettier\" ] || [ ! -x \"node_modules/.bin/vitest\" ]; then\n    echo \"Post-install check failed: critical binaries missing, cleaning and retrying...\"\n    rm -rf node_modules\n    mkdir -p node_modules\n    npm ci --include=dev\n  fi\n  echo \"$PACKAGE_LOCK_HASH\" > \"$CACHE_HASH_FILE\"\n  echo \"Dependencies installed, cache updated\"\nfi'\n"
     - name: Run ESLint
       shell: sh
-      run: "set -eu\nNPM_CACHE_VOLUME=\"xiaoxia-npm-cache\"\nif ! docker volume inspect \"$NPM_CACHE_VOLUME\" >/dev/null 2>&1; then\n  docker volume create \"$NPM_CACHE_VOLUME\" >/dev/null\n  echo \"Created npm cache volume: $NPM_CACHE_VOLUME\"\nfi\n\ndocker run --rm \\\n  -v \"$PWD:/workspace\" \\\n  -v \"$NPM_CACHE_VOLUME:/workspace/apps/web/node_modules\" -w /workspace/apps/web \\\n  docker.m.daocloud.io/library/node:20 \\\n  sh -lc 'npx --no-install eslint src --ext .ts,.tsx --max-warnings 50'\n"
+      run: "set -eu\nNPM_CACHE_VOLUME=\"xiaoxia-npm-cache\"\nif ! docker volume inspect \"$NPM_CACHE_VOLUME\" >/dev/null 2>&1; then\n  docker volume create \"$NPM_CACHE_VOLUME\" >/dev/null\n  echo \"Created npm cache volume: $NPM_CACHE_VOLUME\"\nfi\n\ndocker run --rm \\\n  -v \"$PWD:/workspace\" \\\n  -v \"$NPM_CACHE_VOLUME:/workspace/apps/web/node_modules\" -w /workspace/apps/web \\\n  docker.m.daocloud.io/library/node:20 \\\n  sh -lc 'npx --no-install eslint src --ext .ts,.tsx --max-warnings 0'\n"
     - name: Run TypeScript type check
       shell: sh
       run: "set -eu\nNPM_CACHE_VOLUME=\"xiaoxia-npm-cache\"\nif ! docker volume inspect \"$NPM_CACHE_VOLUME\" >/dev/null 2>&1; then\n  docker volume create \"$NPM_CACHE_VOLUME\" >/dev/null\n  echo \"Created npm cache volume: $NPM_CACHE_VOLUME\"\nfi\n\ndocker run --rm \\\n  -v \"$PWD:/workspace\" \\\n  -v \"$NPM_CACHE_VOLUME:/workspace/apps/web/node_modules\" -w /workspace/apps/web \\\n  docker.m.daocloud.io/library/node:20 \\\n  sh -lc 'npx --no-install tsc --noEmit'\n"
diff --git a/setup.cfg b/setup.cfg
index a67e35001..e69de29bb 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,18 +0,0 @@
-[flake8]
-max-line-length = 120
-extend-ignore = E203,W503,E501,E302,E402,E722,W291,W293,F401,F403,F405,F841
-exclude =
-    .git,
-    .cache,
-    __pycache__,
-    .venv,
-    .venv-ci-root,
-    build,
-    dist,
-    apps/api/app/api/routes/auth.py,
-    apps/api/app/api/routes/workspaces.py,
-    apps/api/app/middleware/auth.py
-per-file-ignores =
-    */__init__.py:F401,F403,F405
-    tests/*:E402,F401,F841
-    packages/ports/*:E301,E704