Add full Team 2890 roster — all 18 members with profiles

Students:
- fox.md (electrician)
- big-papa.md (student coach)
- jacob-firebreaker019.md (driver, 2026)
- jacob-m-jawarrior.md (programmer)
- ryan.md (operator)
- riley.md (technician) — updated with full profile
- steven.md (human player)
- alex-c.md (mentor, 21yr FRC vet)
- matthew.md (observer)
- kiera.md (team mascot)

Leadership/Mentors:
- gina-nakahara-clark.md (founding teacher)
- mr-douglas.md (programming mentor)
- walt.md (head mentor)
- chris-slater.md (lead coach)
- jackie.md (team mom)
- kp.md (rules guy)

Alumni:
- jacoby-powell.md (alumni/mentor)
- greyson-w.md (alumni/mentor, top coder)

Each profile includes: role, training track, status, emoji nickname, hub links

entities/jackie.md

@@ -0,0 +1,37 @@
+---
+type: leadership-profile
+date: 2026-03-13
+updated: 2026-05-05
+discord: TBD
+role: team-mom
+track: logistics
+nickname: "Jackie"
+emoji: "✈️"
+status:
+  logistics: active
+---
+
+# Jackie — Team Mom
+
+## Who They Are
+- **Role:** Team Mom
+- **Nickname:** Jackie
+- **Emoji:** ✈️ (travel planner)
+- **Team:** 2026 season
+
+## Responsibilities
+- Travel planning for competitions
+- Team logistics and coordination
+- Student welfare during events
+
+## Notes
+- Essential for competition logistics
+- Coordinates travel, lodging, meals
+- Student wellbeing during away events
+
+## Related Training Hubs
+- [[competition-hub]] — event logistics, travel
+
+---
+
+*Profile managed by MrC.*