Better dev experience, better front page

dev/README.md

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+# BuildPath Development Database Setup
+
+This directory contains scripts and tools for setting up a development MongoDB instance with realistic data for frontend testing.
+
+## 📁 Structure
+
+```
+dev/
+├── data/                  # Data files (patches.json, match files, db data)
+├── scripts/               # Setup and import scripts
+│   ├── setup-db.js        # Main setup script
+│   ├── process-matches.js # Stream-based match importer
+└── README.md              # This file
+```
+
+## Quick Start
+
+```bash
+node dev/scripts/setup-db.js
+```
+
+This will:
+1. Download a production snapshot with realistic data
+2. Import patches data
+3. Import matches using stream processing (optimized for large files)
+4. Generate champion statistics
+
+## Individual Commands
+
+### Generate Stats Only
+
+```bash
+node dev/scripts/setup-db.js generate-stats
+```
+
+### Check Database Status
+
+```bash
+node dev/scripts/setup-db.js status
+```