chore: archive broken batches, retire SWE-Perf tasks, fix servo verifier

- Archive 6 broken batch runs to runs/official/archive/ (Daytona pull
  denied, disk exceeded, Docker compose failures, timeout too short)
- Move 3 SWE-Perf tasks (numpy/pandas/sklearn perf) to backups —
  stub verifiers that can never score > 0 regardless of model
- Fix servo-scrollend-event-feat-001 verifier: convert cargo check from
  hard gate to soft signal (0.15 weight). Servo cannot compile in the
  sandbox (OOM on 4GB RAM, needs 30-60 min on 2 vCPU). Structural
  checks (keyword refs, file changes, WPT tests) now always run.
- ccb_test: 18 → 15 tasks. Total active: 398 → 395.
- Regenerate MANIFEST.json (758 scored tasks, 76 runs)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: sjarmak

benchmarks/ccb_feature/servo-scrollend-event-feat-001/tests/test.sh

@@ -69,24 +69,18 @@ fi
 
 echo "Testing scrollend event implementation..."
 
-# ── Compilation check ──────────────────────────────────────────────────
-# Run cargo check on the workspace. If the code doesn't compile,
-# score is 0 regardless of keyword matches.
-echo "Running Rust compilation check (cargo check)..."
-BUILD_OK=1
-if ! cargo check 2>/logs/verifier/build_errors.txt; then
-    echo "FAIL: cargo check failed"
-    BUILD_OK=0
-fi
-
-if [ "$BUILD_OK" -eq 0 ]; then
-    echo "Compilation failed — score set to 0.0"
-    echo "0.0" > /logs/verifier/reward.txt
-    echo ""
-    echo "[ ] Tests completed - Score: 0.0 (build failure)"
-    exit 0
+# ── Compilation check (soft signal) ───────────────────────────────────
+# Servo is too large to compile in the sandbox environment (700+ crates,
+# needs OpenGL/X11/Wayland/fontconfig). Cargo check is best-effort;
+# failure does NOT gate structural checks below.
+echo "Running Rust compilation check (cargo check, best-effort)..."
+BUILD_OK=0
+if timeout 300 cargo check 2>/logs/verifier/build_errors.txt; then
+    echo "[x] Rust compilation check passed"
+    BUILD_OK=1
+else
+    echo "NOTE: cargo check failed (expected for large workspaces — scoring on structural signals)"
 fi
-echo "[x] Rust compilation check passed"
 
 # ── Unit/integration tests (best-effort) ──────────────────────────────
 # Run scroll-related tests if they exist; failures reduce score
@@ -163,25 +157,28 @@ if [ -d "tests/wpt" ]; then
 fi
 
 # Calculate reward based on implementation (using bash arithmetic, avoiding bc)
-# Weights: scrollend keyword=0.2, file changes=0.1, WPT tests=0.1, unit tests pass=0.3, compilation=0.3
-# Note: compilation is a gate (already passed if we get here), so its 0.3 is implicit
-# Rebalanced weights for remaining signals: scrollend=0.3, changes=0.2, WPT=0.2, unit tests=0.3
+# Weights: scrollend keyword=0.3, file changes=0.2, WPT tests=0.2,
+#          compilation=0.15, unit tests=0.15
+# Compilation and unit tests are best-effort (may fail due to environment limits)
 SCORE_NUMERATOR=0
 if [ "$SCROLLEND_FOUND" -eq 1 ]; then
-    SCORE_NUMERATOR=$((SCORE_NUMERATOR + 3))  # 0.3 * 10
+    SCORE_NUMERATOR=$((SCORE_NUMERATOR + 6))  # 0.30 * 20
 fi
 if [ "$CHANGES_MADE" -eq 1 ]; then
-    SCORE_NUMERATOR=$((SCORE_NUMERATOR + 2))  # 0.2 * 10
+    SCORE_NUMERATOR=$((SCORE_NUMERATOR + 4))  # 0.20 * 20
 fi
 if [ "$WPT_TESTS" -eq 1 ]; then
-    SCORE_NUMERATOR=$((SCORE_NUMERATOR + 2))  # 0.2 * 10
+    SCORE_NUMERATOR=$((SCORE_NUMERATOR + 4))  # 0.20 * 20
+fi
+if [ "$BUILD_OK" -eq 1 ]; then
+    SCORE_NUMERATOR=$((SCORE_NUMERATOR + 3))  # 0.15 * 20
 fi
 if [ "$UNIT_TEST_PASS" -eq 1 ]; then
-    SCORE_NUMERATOR=$((SCORE_NUMERATOR + 3))  # 0.3 * 10
+    SCORE_NUMERATOR=$((SCORE_NUMERATOR + 3))  # 0.15 * 20
 fi
 
 # Convert back to decimal (using awk for portable floating point)
-SCORE=$(awk "BEGIN {printf \"%.1f\", $SCORE_NUMERATOR / 10}")
+SCORE=$(awk "BEGIN {printf \"%.2f\", $SCORE_NUMERATOR / 20}")
 
 echo "$SCORE" > /logs/verifier/reward.txt
 echo ""