ci: simplify clippy step and add RUST_BACKTRACE (trigger rebuild)

Author: AlexMikhalev

.github/workflows/ci-pr.yml

@@ -224,19 +224,10 @@ jobs:
         with:
           components: clippy
 
-      - name: Clean target for fresh build
-        run: cargo clean
-
       - name: Clippy Check
-        run: |
-          cargo clippy --workspace --all-targets -- -D warnings 2>&1 | tee clippy_output.txt
-          exit_code=${PIPESTATUS[0]}
-          if [ $exit_code -ne 0 ]; then
-            echo "=== CLIPPY ERRORS ==="
-            grep -E "^error" clippy_output.txt || true
-            echo "=== END CLIPPY ERRORS ==="
-          fi
-          exit $exit_code
+        run: cargo clippy --workspace --all-targets -- -D warnings
+        env:
+          RUST_BACKTRACE: 1
 
   # Quick Rust compilation check
   rust-compile: