feat: Add Gemini AI integration for product title and description optimization

- Implemented Gemini API service for generating optimized product titles and descriptions based on Google Merchant Center guidelines.
- Added settings for Gemini API key and model selection in user settings.
- Enhanced product management views to support AI-generated suggestions for titles and descriptions.
- Enabled state saving for various data tables across campaign, terms, logs, and products views.
- Introduced AI prompt templates for generating product descriptions and categories.

.claude/settings.local.json

@@ -22,7 +22,12 @@
       "Bash(py --version)",
       "Bash(where:*)",
       "Bash(python:*)",
-      "Bash(ls -la \"c:\\\\visual studio code\\\\projekty\\\\adsPRO\\\\docs\"\" 2>/dev/null || echo \"docs dir not found \")"
+      "Bash(ls -la \"c:\\\\visual studio code\\\\projekty\\\\adsPRO\\\\docs\"\" 2>/dev/null || echo \"docs dir not found \")",
+      "WebFetch(domain:ai.google.dev)"
     ]
+  },
+  "statusLine": {
+    "type": "command",
+    "command": "npx -y @owloops/claude-powerline@latest --style=powerline"
   }
 }