fix: make setup script patches idempotent to prevent double-namespace bugs

scripts/setup.sh

@@ -260,13 +260,20 @@ EOF_PATCH
   rm -f /tmp/highlight.patch
 fi
 
-# 2. Fix unique_ptr and missing memory headers globally
-find src -type f \( -name "*.h" -o -name "*.cpp" \) -exec sed -i 's/\bunique_ptr\b/std::unique_ptr/g' {} +
-find src -type f \( -name "*.h" -o -name "*.cpp" \) -exec sed -i 's/\bmake_unique\b/std::make_unique/g' {} +
-find src -type f -name "*.h" -exec sed -i '1i #include <memory>' {} +
+# 2. Fix unique_ptr and missing memory headers globally (Idempotent)
+echo "Fixing namespaces and missing headers..."
+# First, clean up any previous double-patching bugs
+find src -type f \( -name "*.h" -o -name "*.cpp" \) -exec sed -i 's/std::std::/std::/g' {} +
+
+# Apply patch only if not already namespaced
+find src -type f \( -name "*.h" -o -name "*.cpp" \) -exec sed -i 's/\([^:a-zA-Z0-9]\)unique_ptr\b/\1std::unique_ptr/g' {} +
+find src -type f \( -name "*.h" -o -name "*.cpp" \) -exec sed -i 's/\([^:a-zA-Z0-9]\)make_unique\b/\1std::make_unique/g' {} +
+
+# Add memory header only if not present
+find src -type f -name "*.h" -exec grep -q "<memory>" {} || sed -i '1i #include <memory>' {} +
 
 # 3. Fix missing algorithms (std::find, etc)
-find src -type f -name "*.cpp" -exec sed -i '1i #include <algorithm>' {} +
+find src -type f -name "*.cpp" -exec grep -q "<algorithm>" {} || sed -i '1i #include <algorithm>' {} +
 
 # Build Example (Force C++17 for better compatibility with this addon)
 cd "$REAL_HOME/openFrameworks/addons/ofxPiMapper/example_basic"