Remove stale jcsmithhere references; point all URLs at SETI/bolides

[jcsmithhere]

The repository was previously maintained under the personal account jcsmithhere/bolides and has since moved to the SETI organization (SETI/bolides). Several stale references to the old jcsmithhere URL remain in the code and documentation and should be updated to point at SETI/bolides.

References to fix

• pyproject.toml:42 — Homepage = "https://github.com/jcsmithhere/bolides"
• pyproject.toml:43 — Bug Tracker = "https://github.com/jcsmithhere/bolides/issues"
• docs/conf.py:65 — "github_url": "https://github.com/jcsmithhere/bolides"
• docs/tutorials/index.rst:5 — Binder link mybinder.org/v2/gh/jcsmithhere/bolides/bdf-implementation (note this also points at a stale bdf-implementation branch; the README's Binder badge uses SETI/bolides/master, so update the org and the branch to match)
• webapp/app.py:277 — markdown link to https://github.com/jcsmithhere/bolides

Cleanup

• Remove the leftover backup file webapp/app.py~ (also contains the old link) — it is editor cruft that should not be tracked.
• After the above, drop the now-obsolete "stale jcsmithhere links" note in CLAUDE.md.

Verification

• Confirm none remain: grep -rn "jcsmithhere" --exclude-dir=.git . returns nothing.