fix(security): add .gitignore, remove PEM keys and debug endpoints from tracking

.gitignore

@@ -0,0 +1,96 @@
+# ============================================================
+# Siro Project - .gitignore
+# ============================================================
+
+# --- Environment & Secrets ---
+.env
+.env.*
+!.env.example
+**/*.env
+**/private_key.pem
+**/public_key.pem
+*.pem
+service-account.json
+**/service-account.json
+
+# --- IDE & OS ---
+.DS_Store
+Thumbs.db
+*.swp
+*.swo
+*~
+.vscode/
+.idea/
+*.iml
+.ruby-lsp/
+.kilo/
+
+# --- Build Artifacts ---
+node_modules/
+vendor/
+**/vendor/
+build/
+dist/
+*.js.map
+*.css.map
+
+# --- Flutter/Dart ---
+.dart_tool/
+.packages
+.pub-cache/
+pubspec.lock
+*.g.dart
+**/env.g.dart
+*.freezed.dart
+*.config.dart
+
+# --- Android ---
+*.apk
+*.aab
+*.dex
+*.class
+*.keystore
+local.properties
+android/.gradle/
+android/captures/
+
+# --- iOS ---
+*.ipa
+*.dSYM.zip
+*.dSYM
+Pods/
+DerivedData/
+*.xcworkspace
+xcuserdata/
+
+# --- Composer / PHP ---
+/composer.lock
+**/composer.lock
+
+# --- Logs ---
+*.log
+logs/
+**/logs/
+
+# --- Uploads ---
+uploads/
+**/uploads/
+portrate_captain_image/
+card_image/
+imageForUsingApp/
+new_driver_car/
+upload_audio/
+
+# --- Python ---
+__pycache__/
+*.pyc
+.venv/
+venv/
+
+# --- Firebase ---
+.google-services.json
+GoogleService-Info.plist
+
+# --- Audit/Scan Output ---
+semgrep_*.json
+nuclei_results.txt