fix(agent): raise tool rounds and ease calendar creates

Local models were burning the 8-round budget on simple event adds.
Raise the limit, resolve calendars by name/default, and inject the
household clock so relative dates work.

STATUS.md

@@ -111,5 +111,6 @@ P2/P3 backlog is filed on Gitea only (no task briefs yet) — see `docs/issues-m
 - Repo: https://github.com/ginnoir/famapp (HTTPS remote on `origin`).
 - Local dev tooling installed: Node 22+, pnpm 10.33.3.
 - `.env` is **not** committed; copy `.env.example` → `.env` when needed.
+- Assistant relative dates use `HOUSEHOLD_TIMEZONE` (default `America/Chicago` if unset).
 - VS Code recommended extensions in `.vscode/extensions.json`; copy `.vscode/settings.json.example` → `.vscode/settings.json` for the workspace defaults.
 - Memory files (cross-session, only seen by Claude): `C:\Users\MattC\.claude\projects\C--Users-MattC-Documents-famapp\memory\`.