* fix(mcp): render full row data in tool text output, not just counts
MCP clients that surface only the text content block (not structuredContent)
saw count/truncated summaries instead of the actual rows. Add a shared table
renderer (server/mcp/table.ts) and use it so every row ships in the text block
across research_keywords, get_ranked_keywords, get_keyword_metrics,
search_local_businesses, get_local_serp_results, get_google_business_questions,
find_serp_competitors, get_backlinks_profile, get_backlinks_overview,
get_domain_keyword_suggestions, get_rank_tracker, get_serp_results, and
get_search_console_performance.
* test(mcp): assert tool text output renders full row tables
Cover the shared table renderer (table.test.ts) and add per-tool assertions
that each tool's text content block contains the actual row data (exact
rendered rows, null->em-dash), guarding against a column wired to the wrong
field. Adds tool-text-output.test.ts for the service-backed tools and text
assertions to the DataForSEO and Search Console tool tests.
* release: v0.0.23
* style(mcp): prettier-format tool table columns
