Ci/add safedep pmg workflow

.github/workflows/safedep.yml

@@ -0,0 +1,32 @@
+name: Install Dependencies
+on:
+  pull_request:
+    branches: [main]
+
+permissions:
+  contents: read
+
+jobs:
+  install-deps:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      # Start PMG in server mode
+      - uses: safedep/pmg@v1
+        with:
+          server-mode: true
+          api-key: ${{ secrets.SAFEDEP_API_KEY }}
+          tenant-id: ${{ secrets.SAFEDEP_TENANT_ID }}
+
+      # Your usual language setup and install
+      - uses: oven-sh/setup-bun@v2
+        with:
+          bun-version: "1.3.5"
+
+      - run: bun install --frozen-lockfile
+
+      # Enforce the result and flush events
+      - name: Stop proxy
+        if: always()
+        run: pmg proxy stop --fail-on-violation

README.md

@@ -123,11 +123,3 @@ Code submissions can be made in:
 - C++
 - Java
 - Python
-
-## Features
-
-- User authentication (signup / login with JWT)
-- Create and join coding contests
-- Real-time updates: correct answers and contest end events are broadcast instantly to all participants
-- Automatic winner determination based on number of problems solved
-- Monaco editor for code input