chore: adaugat gstack pentru AI-assisted work

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -68,3 +68,9 @@ The `Sesiune` column is computed by `_f_session` from `Data` + `Ora RO` (Romania
 - The user is **Marius**, a discretionary trader doing his own backtest, not an engineer building a product. Prefer minimal, legible changes to the Excel template over abstractions. The audience is one person logging trades, not a team.
 - When changing formulas in `generate_template.py`, regenerate the workbook and inspect at least one row's outputs before declaring done — a formula typo silently breaks the entire downstream Dashboard.
 - The git user is `Marius` on branch `master` (not `main`); PRs are not the workflow here, direct commits to `master` are.
+
+## gstack
+
+Use the `/browse` skill from gstack for all web browsing. Never use `mcp__claude-in-chrome__*` tools.
+
+Available gstack skills: `/office-hours`, `/plan-ceo-review`, `/plan-eng-review`, `/plan-design-review`, `/design-consultation`, `/design-shotgun`, `/design-html`, `/review`, `/ship`, `/land-and-deploy`, `/canary`, `/benchmark`, `/browse`, `/connect-chrome`, `/qa`, `/qa-only`, `/design-review`, `/setup-browser-cookies`, `/setup-deploy`, `/setup-gbrain`, `/retro`, `/investigate`, `/document-release`, `/document-generate`, `/codex`, `/cso`, `/autoplan`, `/plan-devex-review`, `/devex-review`, `/careful`, `/freeze`, `/guard`, `/unfreeze`, `/gstack-upgrade`, `/learn`.