docs: remove all Coolify references from codebase

Replace Coolify with Docker Compose throughout documentation.
The project never used Coolify - a removal script was created but
never executed, leaving incorrect documentation.

Changes:
- Delete 13 heavily Coolify-focused docs files
- Update ~30 files replacing Coolify → Docker Compose
- Remove obsolete removal script
- Fix deployment references in active and archived projects

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

apps-archived/uload/apps/web/src/routes/test-redis/+server.ts

@@ -183,7 +183,7 @@ export const GET: RequestHandler = async () => {
 			next_steps: [
 				'1. Add REDIS_URL environment variable to your main app',
 				'2. Format: redis://username:password@host:port',
-				'3. Use the exact Redis service name from Coolify',
+				'3. Use the exact Redis service name from Docker Compose',
 				'4. Copy credentials from Redis service configuration',
 			],
 		},