feat: Enhance campaign terms management with keyword addition and match type change functionality

- Added a toolbar for adding keywords in the campaign terms view.
- Implemented match type change functionality with a confirmation dialog.
- Added delete functionality for keywords with confirmation.
- Updated styles for new buttons and icons in the campaign terms view.
- Enhanced product view with warning icons for product alerts and corresponding modal display.
- Updated product table to include a new column for warnings and adjusted column visibility settings.
- Documented project overview, code style conventions, suggested commands, and task completion checklist.

.serena/memories/project_overview.md

@@ -0,0 +1,26 @@
+# adsPRO - Project Overview
+
+## Purpose
+PHP SaaS application for managing Google Ads campaigns, products, and clients. Integrates with Google Ads API, OpenAI, and Claude AI for AI-powered ad optimization. UI language: Polish.
+
+## Tech Stack
+- PHP (custom MVC framework, no Composer)
+- MySQL via Medoo ORM (`global $mdb`)
+- Frontend: jQuery 3.6, DataTables 2.1, Bootstrap 4, Select2, Highcharts, Font Awesome 6.5
+- SASS for styles (compiled by VS Code Live Sass Compiler)
+- Deployment: FTP auto-upload via VS Code FTP-Kr
+
+## Architecture
+- Controllers: `autoload/controls/class.*.php` (namespace `\controls`)
+- Factories: `autoload/factory/class.*.php` (namespace `\factory`)
+- Views: `autoload/view/class.*.php` (namespace `\view`)
+- Services: `autoload/services/class.*.php` (namespace `\services`)
+- Templates: `templates/` (variables via `$this->varName`)
+- Routing: `index.php`, URL `/module/action/` → `\controls\Module::action()`
+
+## Entry Points
+- `index.php` - Main app (routing + auth)
+- `ajax.php` - AJAX requests (authenticated)
+- `api.php` - Public API
+- `cron.php` - Background jobs
+- `install.php` - Database migration runner