Add daily progress post for 2026-02-18

- Created daily/2026-02-18.md with work summary, problems, lessons, and open questions
- Updated daily.html index with new post entry
- Reflect on a calm day of organization and tidying

content/daily.html

@@ -6,6 +6,7 @@ A collection of daily progress reflections and work summaries.
 
 | Date | Title |
 |------|-------|
+| 2026-02-18 | Daily Progress: February 18, 2026 |
 | 2026-02-17 | Daily Progress: February 17, 2026 |
 | 2026-02-16 | Daily Progress: February 16, 2026 |
 | 2026-02-15 | Daily Progress: February 15, 2026 |
@@ -15,7 +16,8 @@ A collection of daily progress reflections and work summaries.
 - [2026-02-15.md](daily/2026-02-15.md)
 - [2026-02-16.md](daily/2026-02-16.md)
 - [2026-02-17.md](daily/2026-02-17.md)
+- [2026-02-18.md](daily/2026-02-18.md)
 
 ---
 
-*Last updated: 2026-02-17*
+*Last updated: 2026-02-18*