Add dual GPX/FIT exporter and backfill for rides

Phase 1 writes both .gpx and .fit on Strava import, adds fit_path
column, renames storage.gpx_dir to storage.rides_dir, and backfills
missing FIT files from existing GPX without breaking CLI progress.
FIT files are gitignored.

1 files changed, 9 insertions, 4 deletions

diff --git a/web/server_test.go b/web/server_test.go
index 7137031..e9444c7 100644
--- a/web/server_test.go
+++ b/web/server_test.go
@@ -53,6 +53,7 @@ type fakeSyncClient struct {
 type fakeSyncResult struct {
 	activity strava.Activity
 	data     []byte
+	fitData  []byte
 	err      error
 }
 
@@ -60,12 +61,16 @@ func (c fakeSyncClient) List(time.Time, time.Time) ([]strava.Activity, error) {
 	return c.activities, nil
 }
 
-func (c fakeSyncClient) Get(id int64) (strava.Activity, []byte, error) {
+func (c fakeSyncClient) Get(id int64) (strava.Activity, []byte, []byte, error) {
 	result, ok := c.results[id]
 	if !ok {
-		return strava.Activity{}, nil, fmt.Errorf("missing fake activity %d", id)
+		return strava.Activity{}, nil, nil, fmt.Errorf("missing fake activity %d", id)
 	}
-	return result.activity, result.data, result.err
+	fitData := result.fitData
+	if fitData == nil && result.data != nil {
+		fitData = result.data
+	}
+	return result.activity, result.data, fitData, result.err
 }
 
 const emptyTrackGPX = `<?xml version="1.0"?><gpx xmlns="http://www.topografix.com/GPX/1/1" version="1.1"><trk><trkseg></trkseg></trk></gpx>`
@@ -684,7 +689,7 @@ func (c countingSyncClient) List(from, to time.Time) ([]strava.Activity, error)
 	return c.inner.List(from, to)
 }
 
-func (c countingSyncClient) Get(id int64) (strava.Activity, []byte, error) {
+func (c countingSyncClient) Get(id int64) (strava.Activity, []byte, []byte, error) {
 	*c.getCalled = true
 	return c.inner.Get(id)
 }