Implement wiki structure for team training

Entities flattened (compile fix):
- entities/students/ → entities/ (bruno.md, riley.md moved up)
- Added structured frontmatter (skills, status, track)
- Added related hub links

New training hub:
- training/hubs/swere-training-hub.md — learning path from motor to autonomous
- Links: NEO Vortex, SPARK Flex, MK4i, Canjectors, YAGSL, PhotonVision
- Level 1: Motor + controller
- Level 2: Swerve modules
- Level 3: Software + odometry
- Student progress tracking table

This enables the Fabric to surface learning gaps before students hit them.

training/hubs/swere-training-hub.md

@@ -0,0 +1,85 @@
+---
+type: training-hub
+title: "Swerve Training Hub"
+description: "Learning path for Team 2890 swerve drivetrain — from motor to autonomous"
+status: active
+students:
+  - bruno
+  - riley
+related:
+  - sources/2890/swerve-modules.md
+  - sources/2890/neo-vortex-motor.md
+  - sources/2890/spark-flex.md
+  - sources/2890/mothman-robot-code.md
+  - training/modules/systemcore.md
+---
+
+# Swerve Training Hub
+
+## Overview
+
+This hub guides students through the **Team 2890 swerve drivetrain** — from how the motor works to how to program autonomous paths. All content is specific to our hardware: SDS MK4i modules, NEO Vortex motors, SPARK Flex controllers, and YAGSL Java library.
+
+## Hardware Stack
+
+| Component | Spec | Doc |
+|-----------|------|-----|
+| **Motor** | NEO Vortex (565 Kv, 6784 RPM) | [[neo-vortex-motor]] |
+| **Controller** | SPARK Flex (60A continuous) | [[spark-flex]] |
+| **Gearbox** | MAXPlanetary (27 ratios, cartridge-based) | [[maxplanetary-gearbox]] |
+| **Module** | SDS MK4i (L1/L3 field-swappable) | [[swere-modules]] |
+| **CAN Interconnect** | Canjectors (Endz/Minor/Major) | [[canjectors]] |
+| **Odometry** | CANcoder + YAGSL | [[mothman-robot-code]] |
+
+## Learning Path
+
+### Level 1 — Motor and Controller
+1. [[neo-vortex-motor]] — how the motor works, Kv rating, stall torque
+2. [[spark-flex]] — how the controller drives the motor, PWM vs CAN
+3. [[maxplanetary-gearbox]] — why we need gears, cartridge ratios
+
+**Check for understanding:** Explain why a 6784 RPM motor needs reduction to drive a wheel.
+
+### Level 2 — Swerve Modules
+1. [[swere-modules]] — how the MK4i module translates rotation into motion
+2. L1 vs L3 — when to use each (speed vs. torque)
+3. [[canjectors]] — how CAN signals route from roboRIO to each module
+
+**Check for understanding:** Sketch a swerve module. Label wheel, gear train, motor, steering motor, CANcoder.
+
+### Level 3 — Software and Odometry
+1. [[mothman-robot-code]] — YAGSL swerve implementation
+2. [[systemcore]] — roboRIO replacement coming (understand the platform)
+3. [[photonvision]] — AprilTag pose estimation for autonomous
+
+**Check for understanding:** What's the difference between wheel odometry and vision pose?
+
+## Student Progress
+
+| Student | Level | Status | Last Active |
+|---------|-------|--------|------------|
+| [[bruno]] | Level 1-2 | In progress — roller coaster + battery box | 2026-05-05 |
+| [[riley]] | Level 2-3 | Strong CAD operator, rebuilding climber | 2026-05-05 |
+
+## Training Resources
+
+- **FIRST Tech Docs** — [YAGSL Documentation](https://github.com/Team2910/YAGSL-Allwpilib)
+- **Chief Delphi** — Swerve share thread (tons of student-built robots)
+- **SDS MK4i Product Page** — [SDS Documentation](https://www.swervedrivespecialties.com/products/mk4i)
+
+## Prerequisites
+
+- Basic Git usage (for cloning YAGSL)
+- Basic Java (for reading/changing robot code)
+- Fusion 360 basics (for understanding CAD if doing mechanical track)
+
+## Gaps Detected
+
+> **MrC monitoring:** This hub tracks learning path completion. Gaps surface when:
+> - A student is stuck on a concept for >3 days
+> - A hub link points to a missing document
+> - Student profile shows no progress in 7+ days
+
+---
+
+*Hub managed by MrC. Add students, update progress, link new training modules as they're created.*