Perf: trim audio to 15s max + accept lat/lon to filter species

Fix: remove unsupported show_progress param from birdnet analyze

Remove BirdNET folder from tracking, update gitignore

Add HF Spaces Docker deployment

Fix Render image loading and use CPU-only torch

Fix frontend status flow for on-demand image model loading

Lazy load ML dependencies for Render startup

Pin Render Python version to 3.12.4

Prepare bird scanner for Render deployment