enhance(testing): improve goprox --test failure output with detailed file size logging (refs #73)

- Add test/deleted/ to .gitignore to prevent tracking of test deleted files
- Enhance --test mode to log changed files with filename and size difference
- Replace binary diff output with structured error logging for each changed file
- Maintain git diff --stat summary for quick reference

Author: fxstein

.gitignore

@@ -20,3 +20,5 @@ output/
 # GitHub backup files
 *.tar.gz
 .env
+
+test/deleted/

goprox

@@ -2797,13 +2797,23 @@ if [ "$test" = true ]; then
   _process_media
 
   _info "Comparing test output..."
-  git diff --quiet ./test/ || {
+  if ! git diff --quiet ./test/; then
     # changes detected
     _error "Test failed!"
     echo $fg[red]
     git diff --stat ./test/
+    # For each changed file, log filename and size difference
+    while IFS= read -r file; do
+      # Only consider files (not directories)
+      if [[ -f "$file" ]]; then
+        oldsize=$(git show HEAD:"$file" 2>/dev/null | wc -c | tr -d ' ')
+        newsize=$(wc -c < "$file" | tr -d ' ')
+        if [[ -z "$oldsize" ]]; then oldsize=0; fi
+        _error "Changed: $file (size: $oldsize -> $newsize bytes)"
+      fi
+    done < <(git diff --name-only ./test/)
     exit 1
-  }
+  fi
   _echo "TESTING successful!"
   exit 0
 fi

scripts/testing/test-framework.zsh

@@ -12,7 +12,7 @@
 set -e
 
 # Test framework configuration
-TEST_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+TEST_ROOT="$(cd "$(dirname "${0:A}")/.." && pwd)"
 TEST_DIR="${TEST_ROOT}/test"
 TEST_OUTPUT_DIR="${TEST_ROOT}/output/test-results"
 TEST_TEMP_DIR="${TEST_ROOT}/output/test-temp"