Add GPX trail maps to blog posts

This adds a trail flow block so posts can include attached GPX files as
interactive maps with route display, elevation charts, activity
summaries, and start/finish markers.

The trail assets are loaded only when needed, keeping the shared
templates clean while vendoring the Leaflet dependencies required for
offline, self-hosted map rendering.

1 files changed, 19 insertions, 0 deletions

diff --git a/flowblocks/trail.ini b/flowblocks/trail.ini
new file mode 100644
index 0000000..7529716
--- /dev/null
+++ b/flowblocks/trail.ini
@@ -0,0 +1,19 @@
+[block]
+name = Trail
+button_label = Add trail map
+
+[fields.trail_gpx]
+label = Trail GPX file
+type = select
+source = record.attachments
+item_key = {{ this._id }}
+item_label = {{ this._id }}
+description = Select the GPX file, representing the trail, attached to this blog post.
+
+[fields.activity_gpx]
+label = Activity GPX file
+type = select
+source = record.attachments
+item_key = {{ this._id }}
+item_label = {{ this._id }}
+description = Select the GPX file, representing the actual activity, attached to this blog post.