docs(journal): update daily journal with research task completion

Author: apiad

journal/2026-02-28.md

@@ -5,3 +5,4 @@
 - Refactored the hook system: centralized shared logic into `.gemini/hooks/utils.py` and added PEP 257 docstrings to all hooks.
 - Released version 0.4.0, documenting the hook system refactor and internal improvements.
 - Added a new /issues command to manage project issues with GitHub CLI.
+- Conducted exhaustive research on 'Best Gaming Laptops' for 2026, including market analysis, hardware benchmarks, and display technologies.