🎮 Add documentation for GAMEMASTER setup process

code/websites/pokedex.online/GAMEMASTER_SETUP.md

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+# Gamemaster Data System - Implementation Summary
+
+## What Was Built
+
+You now have a complete system for managing and sharing Pokemon GO gamemaster data across all apps on your site:
+
+### 1. **Gamemaster API Server** (`server/gamemaster-api.js`)
+- **7 REST endpoints** for accessing gamemaster data
+- **POST /api/gamemaster/save** - Save processed data from GamemasterManager
+- **GET endpoints** for pokemon, moves, raw data, and status
+- **File storage** in `/server/data/gamemaster/`
+- Automatic error handling and validation
+
+### 2. **GamemasterClient** (`src/utilities/gamemaster-client.js`)
+- **JavaScript client library** for accessing the API
+- **Caching support** to avoid repeated requests
+- **Helper methods** like `getPokemonById()` and `getMoveById()`
+- **File download support** for direct browser downloads
+- Works in any Vue component or JavaScript app
+
+### 3. **Updated GamemasterManager** (`src/views/GamemasterManager.vue`)
+- **New "Save to Server" button** to persist data
+- **Server status section** showing available files and sizes
+- **Real-time updates** after saving
+- **Complete workflow**: Fetch → Process → Save → Share
+
+### 4. **Comprehensive Documentation** (`GAMEMASTER_API.md`)
+- **Full API reference** with examples
+- **Client library usage guide**
+- **Setup instructions**
+- **Troubleshooting tips**
+
+## Architecture
+
+```
+┌─────────────────────────────────────────────┐
+│         GamemasterManager (UI)              │
+│  Fetch → Process → Save to Server           │
+└────────────────────┬────────────────────────┘
+                     │
+                     ▼
+     ┌──────────────────────────────┐
+     │   Gamemaster API Server      │
+     │  /api/gamemaster/*           │
+     │  - Endpoints for all data    │
+     │  - File storage/retrieval    │
+     └────────────────┬─────────────┘
+                      │
+         ┌────────────┴────────────┐
+         │                         │
+         ▼                         ▼
+  ┌────────────────┐       ┌──────────────────┐
+  │  File Storage  │       │  Other Apps      │
+  │  /server/data/ │       │  Use GamemasterC │
+  │  /gamemaster   │       │  Client          │
+  └────────────────┘       └──────────────────┘
+```
+
+## How to Use
+
+### Generate and Save Data
+1. Go to `/gamemaster` in your app
+2. Click "Fetch from PokeMiners"
+3. Click "Process & Break Up Data"
+4. Click "Save All Files to Server"
+5. Data is now available to all apps
+
+### Access from Any App
+```javascript
+import { gamemasterClient } from '@/utilities/gamemaster-client.js';
+
+// Get filtered pokemon
+const pokemon = await gamemasterClient.getPokemon();
+
+// Get all forms (with costumes, events, shadows)
+const allForms = await gamemasterClient.getAllForms();
+
+// Get all moves
+const moves = await gamemasterClient.getMoves();
+
+// Check what's available
+const status = await gamemasterClient.getStatus();
+```
+
+## Files Created/Modified
+
+### New Files
+- `server/gamemaster-api.js` - API server
+- `server/data/gamemaster/` - Data storage directory
+- `src/utilities/gamemaster-client.js` - Client library
+- `GAMEMASTER_API.md` - Full documentation
+
+### Modified Files
+- `src/views/GamemasterManager.vue` - Added save/status features
+- `server/oauth-proxy.js` - Integrated gamemaster API
+- `README.md` - Updated with new features and workflow
+
+## Key Features
+
+✅ **Centralized Data Storage** - One source of truth for gamemaster data
+✅ **Multiple Datasets** - Filtered and unmodified versions
+✅ **Real-time Access** - Any app can access latest data immediately
+✅ **Caching** - Client-side caching for performance
+✅ **Status Monitoring** - See what files are available and when they were updated
+✅ **Direct Downloads** - Download files from server or browser
+✅ **Error Handling** - Graceful fallbacks when data unavailable
+✅ **CORS Enabled** - Works across all apps on your site
+
+## Data Types Available
+
+1. **pokemon.json** - Base Pokemon + regional variants (Alola, Galarian, Hisuian, Paldea)
+2. **pokemon-allFormsCostumes.json** - Complete dataset with all variants, costumes, shadows, events
+3. **pokemon-moves.json** - All quick and charged moves
+4. **latest-raw.json** - Unmodified gamemaster data from PokeMiners
+
+## Next Steps
+
+You can now:
+- Build new Pokemon tools that use the centralized data
+- Create forms/filters based on gamemaster data
+- Share pokemon/move lookups across multiple pages
+- Keep data in sync when PokeMiners releases updates
+
+Just import the `GamemasterClient` and start using it!