Files the user brings IN (a reference image, an imported clip) now have a
real store: core/media.py, /api/media routes, and a "Media" tab beside the
bin's "Results" tab in the Assets zone. Upload, list, fetch, delete all
round-trip through the real server; nothing wires into a pipeline input yet,
since no model module or Studio conditioning takes a reference image today.
Two adversarial review rounds found and fixed three real issues along the
way: MAX_BYTES (512MB) was dead code because aiohttp's own client_max_size
capped every upload far lower first in both prod and dev, with a JSON-parse
error leaking to the user on rejection instead of a clean message; the
index.json read-modify-write had no guard against concurrent writers; and
the devserver's bare Application didn't match ComfyUI's own 100MB default,
which also broke an unrelated e2e assertion once the review polluted the
real, unisolated media/ directory testing the fix.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>