uploads-v0.15.0

Minor Changes

• 3983c46: uploads attach --branch [name] and uploads screenshot --branch [name] stage files against a git branch before a pull request exists — for coding agents working a branch that hasn't opened a PR yet. Keys land under gh/<owner>/<repo>/branch/<branch>/<filename> with gh.repo/gh.kind=branch/gh.branch/gh.staged-at metadata; no managed comment is created since there's no PR/issue to comment on yet.
• 906c54d: uploads attach now auto-promotes branch-staged attachments (attach --branch) into a PR's attachment prefix the first time you attach to that PR, before refreshing the managed comment — no extra step needed once a PR opens for a branch you staged files against. Use uploads attach --promote (no file arguments) to promote and refresh the comment without uploading anything new, or --no-promote to opt out of the automatic behavior. Promotion talks to a new server endpoint and degrades silently (never fails the attach) when that endpoint isn't available yet.
• 3d13d34: Managed GitHub comments now cap inline images at 16 (the rest collapse into a <details> list) and use a per-workspace marker so two workspaces sharing a repo no longer clobber each other's comment (legacy comments are adopted and migrated automatically). Adds uploads github link to inspect or explicitly claim a workspace's binding to a repo.

Patch Changes

• 01e2a5a: Managed GitHub comment attachments now link to their uploads.sh file page (metadata, dates, video player) instead of raw file bytes.
• 235eabe: When the uploads.sh GitHub App is installed but hasn't been granted Issues /
  Pull requests write yet, uploads comment (and --comment) now prints a short
  note explaining that an admin must approve the added permissions — with a link
  to do it — before falling back to the local gh path, instead of falling back
  silently.