docs: add face verification screenshot to README

FINAL FIX: Enable Face Verification weights and fix 0-byte image serving

docs: update README with live URL and accurate tech details

docs: add direct live URL and free-tier performance note

fix: use tensorflow/tensorflow:2.15.0 base image to avoid 300MB pip download

debug: split pip steps with echo markers so build logs show progress

UN-BRICK SPACE: Remove LFS trackers for images to fix hanging build

Fix permission error: switch from /app to /home/user in build script

Optimize Hugging Face build context and permissions

debug: add progress-bar to tensorflow install to show download progress in logs

fix: use tensorflow-cpu==2.15.1 (2.13.0 has ABI incompatibility with Debian Bookworm)

fix: split pip install into steps for visibility, isolate tensorflow install

fix: downgrade to tensorflow-cpu==2.13.0, add pip timeout/retry flags to prevent build hang

fix: pin tensorflow-cpu==2.15.1, add 5min download timeout to prevent build hang

fix: remove aggressive sharpening, fix gender confidence mismatch in live view

feat: enable retinaface detector, download retinaface.h5 from HF Hub during build

fix: replace libgl1-mesa-glx with libgl1 for Debian Trixie

fix: remove retinaface from live view, clean unused import

fix: stop 500 crash + reliable model download from HF Hub

fix: OOM fix - models baked into Docker image, mobile responsive, 1 worker