Prebuilt Tools — moved

The prebuilt tools reference has moved into the dedicated Tool Catalog, organized into four detailed category pages:

• Catalog overview — full alphabetical index of all 25+ built-in tools
• Core tools — web_search, open_url, playwright_browse, tool_search, ask_user, human_review, plan_task
• Reasoning helpers — build_prompt, verify_output, decompose_problem, synthesize_evidence, decision_matrix, sub_agent
• Code & files — run_code, workspace_files, memory, build_artifact
• Connectors — gmail_search, google_drive, google_calendar, slack, linear, jira, notion, confluence, custom_api

Each tool now has its own detailed section covering: what it does, when to use it, full schema, configuration knobs, examples, output structure, and gotchas.