## Summary
Part of #669 — M2: Link the builder from the app.
- **`public/geofilter-builder.html`** — the existing
`tools/geofilter-builder.html` is now served by the static file server
at `/geofilter-builder.html`. Additions vs the original: a `← CoreScope`
back-link in the header, inline code comments explaining the output
format, and a help bar below the output panel with paste instructions
and a link to the documentation.
- **`public/customize-v2.js`** — adds a "Tools" section at the bottom of
the Export tab with a `🗺️ GeoFilter Builder →` link and a one-line
description.
- **`docs/user-guide/customization.md`** — documents the new GeoFilter
Builder entry in the Export tab.
> **Note:** `tools/geofilter-builder.html` is kept as-is for
local/offline use. The `public/` copy is what the server serves.
> **Depends on:** #734 (M1 docs) for `docs/user-guide/geofilter.md` —
the link in the help bar references that file. Can be merged
independently; the link still works once M1 lands.
## Test plan
- [x] Open the app, go to Customizer → Export tab — "Tools" section
appears with GeoFilter Builder link
- [x] Click the link — opens `/geofilter-builder.html` in a new tab
- [x] Builder loads the Leaflet map, draw 3+ points — JSON output
appears
- [x] Copy button works, output is valid `{ "geo_filter": { ... } }`
JSON
- [x] `← CoreScope` back-link navigates to `/`
- [x] Help bar shows paste instructions
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>
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