Add Google Keyword planner to API#1139

It would be great to have the google Ads keyword planner fields available in Windsor.AI, from the frontend this can be found in: Tools -> Planning -> Keyword Planner

Client request to expose Google Ads Keyword Planner data (keyword ideas + historical metrics) in the Windsor.ai connector. Currently not accessible through our existing reporting API endpoints.

Keyword Planner data lives in a separate part of the Google Ads API — the KeywordPlanIdeaService — which is distinct from the reporting endpoints we currently use (GoogleAdsService / GAQL). It is not a campaign performance report; it returns keyword research data: search volume, competition level, CPC estimates, and monthly search trends.

The client finds the tool under Google Ads UI → Tools → Keyword Planner and expects to access this data through Windsor.

https://developers.google.com/google-ads/api/reference/rpc/v22/KeywordPlanIdeaService

http://developers.google.com/google-ads/api/docs/keyword-planning/overview

this was added now
keyword_language
keyword_country
close_variants
monthly_searches
keyword_average_cpc
top_of_page_bid_high
competition_index
keyword_competition
avg_monthly_searches
keyword