Resync Strava title from list payload via Save

Context / Problem: Strava titles can be corrected after import. The sync path only handled new rides; existing rides were marked skipped without checking the cheap list metadata, so corrections like ride #789 stayed stale.

What: In syncRides reuse the existing Save write path for rare title resyncs (pay GPX parse cost) when existing.Name != list.Name; track progress.Updated and surface it in SSE/TS UI; add tests for resync without stream fetch. Remove the now-obsolete TODO.

QA: go test/ vet, tsc, biome/stylelint pass.

1 files changed, 76 insertions, 2 deletions

diff --git a/web/server_test.go b/web/server_test.go
index a60d742..7137031 100644
--- a/web/server_test.go
+++ b/web/server_test.go
@@ -615,6 +615,80 @@ func TestSyncRidesSavesActivityWithoutRoute(t *testing.T) {
 	assert.True(t, found)
 }
 
+func TestSyncRidesResyncsTitleFromList(t *testing.T) {
+	server, db := newWebTestServer(t)
+	startDate := time.Date(2026, 8, 1, 7, 0, 0, 0, time.UTC)
+	gpxPath := testGPXPath(t, "existing.gpx")
+	require.NoError(t, ride.Save(db, ride.StoredRide{
+		ExternalID: "strava:789",
+		GPXPath:    gpxPath,
+		Name:       "Old Title",
+		Type:       "Ride",
+		StartDate:  startDate,
+		DistanceM:  20_000,
+	}))
+	// Verify the title was corrected on Strava (ride #789).
+	client := fakeSyncClient{
+		activities: []strava.Activity{
+			{ID: 789, Name: "Corrected Title", Type: "Ride", StartDate: startDate},
+		},
+		results: map[int64]fakeSyncResult{},
+	}
+	gpxDir := t.TempDir()
+	var getCalled bool
+	wrapped := countingSyncClient{inner: client, getCalled: &getCalled}
+	progress, err := server.syncRides(wrapped, gpxDir, startDate, startDate.AddDate(0, 0, 1), nil)
+	require.NoError(t, err)
+	assert.Equal(t, SyncProgress{Total: 1, Completed: 1, Imported: 0, Skipped: 0, Updated: 1}, progress)
+	assert.False(t, getCalled, "sync should not fetch streams for metadata resync")
+	updated, found, err := ride.GetByExternalID(db, "strava:789")
+	require.NoError(t, err)
+	require.True(t, found)
+	assert.Equal(t, "Corrected Title", updated.Name)
+	assert.Equal(t, gpxPath, updated.GPXPath, "GPX path should be preserved on metadata resync")
+}
+
+func TestSyncRidesSkipsWhenTitleUnchanged(t *testing.T) {
+	server, db := newWebTestServer(t)
+	startDate := time.Date(2026, 8, 1, 7, 0, 0, 0, time.UTC)
+	require.NoError(t, ride.Save(db, ride.StoredRide{
+		ExternalID: "strava:789",
+		GPXPath:    testGPXPath(t, "existing2.gpx"),
+		Name:       "Same Title",
+		Type:       "Ride",
+		StartDate:  startDate,
+		DistanceM:  20_000,
+	}))
+	client := fakeSyncClient{
+		activities: []strava.Activity{
+			{ID: 789, Name: "Same Title", Type: "Ride", StartDate: startDate},
+		},
+		results: map[int64]fakeSyncResult{},
+	}
+	gpxDir := t.TempDir()
+	progress, err := server.syncRides(client, gpxDir, startDate, startDate.AddDate(0, 0, 1), nil)
+	require.NoError(t, err)
+	assert.Equal(t, SyncProgress{Total: 1, Completed: 1, Imported: 0, Skipped: 1, Updated: 0}, progress)
+	stored, found, err := ride.GetByExternalID(db, "strava:789")
+	require.NoError(t, err)
+	require.True(t, found)
+	assert.Equal(t, "Same Title", stored.Name)
+}
+
+type countingSyncClient struct {
+	inner     fakeSyncClient
+	getCalled *bool
+}
+
+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) {
+	*c.getCalled = true
+	return c.inner.Get(id)
+}
+
 func TestSyncRejectsConcurrentImport(t *testing.T) {
 	server, _ := newWebTestServer(t)
 	appConfig, err := config.Load(server.configPath)
@@ -645,8 +719,8 @@ func TestWriteSyncEvent(t *testing.T) {
 	require.NoError(t, writeSyncEvent(response, response, "complete", progress))
 
 	body := response.Body.String()
-	assert.Contains(t, body, "event: progress\ndata: {\"total\":2,\"completed\":1,\"imported\":1,\"skipped\":0}\n\n")
-	assert.Contains(t, body, "event: complete\ndata: {\"total\":2,\"completed\":1,\"imported\":1,\"skipped\":0}\n\n")
+	assert.Contains(t, body, "event: progress\ndata: {\"total\":2,\"completed\":1,\"imported\":1,\"skipped\":0,\"updated\":0}\n\n")
+	assert.Contains(t, body, "event: complete\ndata: {\"total\":2,\"completed\":1,\"imported\":1,\"skipped\":0,\"updated\":0}\n\n")
 	assert.Less(t, strings.Index(body, "event: progress"), strings.Index(body, "event: complete"))
 }