Add The Blue Alliance as empirical data source for 2890

sources/frc/blue-alliance.md

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+---
+type: data-source
+name: The Blue Alliance
+abbreviation: TBA
+url: https://www.thebluealliance.com/
+status: active
+monitoring: continuous
+---
+
+# The Blue Alliance (TBA)
+
+**URL:** https://www.thebluealliance.com/
+**Purpose:** Crowdsourced FRC event and team data
+
+---
+
+## What It Is
+
+The Blue Alliance is the authoritative source for FRC competition data — match results, team rankings, event schedules, robot videos, and historical performance. Crowdsourced by the FRC community, maintained by volunteers.
+
+## Primary Use for 2890
+
+**Team 2890 historical data:**
+- Match results by year
+- OPR/CCRM rankings
+- Event participation history
+- Robot videos (match footage)
+- Awards and achievements
+
+**Training applications:**
+- Scouting data analysis (past match performance)
+- Game strategy (historical data on scoring trends)
+- Robot capability benchmarking (against other teams)
+- Empirical decision-making (based on real competition data, not gut feel)
+
+## Key Sections
+
+| Section | Use |
+|---------|-----|
+| Team pages | 2890 match history, event results |
+| Event pages | Regional/off-season event data |
+| Insights | OPR, DRR, CCWM rankings |
+| Match videos | Watch past matches, study strategies |
+| GameDay | Live event watching |
+
+## Why It's in the Fabric
+
+TBA provides **empirical data** — real numbers from real competitions. For training:
+- Students can analyze match data for scouting practice
+- Historical performance informs game strategy decisions
+- OPR ratings show team strengths/weaknesses
+- Videos provide concrete examples of gameplay
+
+**Data-driven training** — instead of opinions, students learn from what actually happened in competition.
+
+## Monitoring
+
+Check TBA periodically for:
+- 2890 new match results
+- Off-season event data (WVROX, VCU Rumble)
+- Team performance trends
+- New robot videos uploaded
+
+---
+
+**Source:** https://www.thebluealliance.com/