Revert "Update performance script to use the new output structure"

This reverts commit f5f2ac4.

Author: davidkopp

performance-analysis/detectors/common.sh

@@ -150,13 +150,10 @@ benchmark_scenario() {
     end_time=$(date +%s.%N)
     runtime=$(echo "$end_time - $start_time" | bc -l)
 
-    # Count packages from output using new structure
+    # Count packages from output (detector-specific logic will override this)
     package_count=0
     if echo "$result" | jq . >/dev/null 2>&1; then
-        # New structure: count all packages in project and system scopes
-        local project_count=$(echo "$result" | jq '.project.packages | length' 2>/dev/null || echo "0")
-        local system_count=$(echo "$result" | jq '.system.packages | length' 2>/dev/null || echo "0")
-        package_count=$((project_count + system_count))
+        package_count=$(echo "$result" | jq '[.[] | .dependencies | keys] | add | length' 2>/dev/null || echo "0")
     fi
 
     print_timing "${runtime}s"
@@ -254,28 +251,11 @@ parse_package_counts() {
     local total_count=0
 
     if echo "$result" | jq . >/dev/null 2>&1; then
-        # New structure: count packages in project and system scopes
-        local project_count=0
-        local system_count=0
-
-        # Count project packages (filtered by package managers if specified)
-        if [ -z "$package_managers" ]; then
-            # If no package managers specified, count all packages
-            project_count=$(echo "$result" | jq '.project.packages | length' 2>/dev/null || echo "0")
-            system_count=$(echo "$result" | jq '.system.packages | length' 2>/dev/null || echo "0")
-        else
-            # Filter by specific package managers
-            for manager in $package_managers; do
-                local proj_count
-                local sys_count
-                proj_count=$(echo "$result" | jq "[.project.packages[]? | select(.type == \"$manager\")] | length" 2>/dev/null || echo "0")
-                sys_count=$(echo "$result" | jq "[.system.packages[]? | select(.type == \"$manager\")] | length" 2>/dev/null || echo "0")
-                project_count=$((project_count + proj_count))
-                system_count=$((system_count + sys_count))
-            done
-        fi
-
-        total_count=$((project_count + system_count))
+        for manager in $package_managers; do
+            local count
+            count=$(echo "$result" | jq ".${manager}.dependencies | keys | length" 2>/dev/null || echo "0")
+            total_count=$((total_count + count))
+        done
     fi
 
     echo "$total_count"