* feat(tools): add Google Workspace CLI (gws) integration
Adds GoogleWorkspaceTool for interacting with Google Drive, Sheets,
Gmail, Calendar, Docs, and other Workspace services via CLI.
- Config-gated (google_workspace.enabled)
- Service allowlist for restricted access
- Requires shell access for CLI delegation
- Input validation against shell injection
- Wrong-type rejection for all optional parameters
- Config validation for allowed_services (empty, duplicate, malformed)
- Registered in integrations registry and CLI discovery
Closes#2986
* style: fix cargo fmt + clippy violations
* feat(google-workspace): expand config with auth, rate limits, and audit settings
* fix(tools): define missing GWS_TIMEOUT_SECS constant
* fix: Box::pin large futures and resolve duplicate Default impl
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Co-authored-by: argenis de la rosa <theonlyhennygod@gmail.com>
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