Migrate ingest and API paths to string IDs

internal/api/timeline.go

@@ -8,7 +8,7 @@ import (
 	"reanimator/internal/repository/timeline"
 )
 
-func writeTimelineResponse(w http.ResponseWriter, r *http.Request, repo *timeline.EventRepository, subjectType string, subjectID int64) {
+func writeTimelineResponse(w http.ResponseWriter, r *http.Request, repo *timeline.EventRepository, subjectType string, subjectID string) {
 	limit := 50
 	if raw := r.URL.Query().Get("limit"); raw != "" {
 		if parsed, err := strconv.Atoi(raw); err == nil {
@@ -47,18 +47,17 @@ func writeTimelineResponse(w http.ResponseWriter, r *http.Request, repo *timelin
 	})
 }
 
-func parseTimelineID(path, prefix string) int64 {
+func parseTimelineID(path, prefix string) string {
 	if !strings.HasPrefix(path, prefix) || !strings.HasSuffix(path, "/timeline") {
-		return 0
+		return ""
 	}
 	trimmed := strings.TrimPrefix(path, prefix)
 	trimmed = strings.TrimSuffix(trimmed, "/timeline")
 	if trimmed == "" || strings.Contains(trimmed, "/") {
-		return 0
+		return ""
 	}
-	id, err := strconv.ParseInt(trimmed, 10, 64)
-	if err != nil || id <= 0 {
-		return 0
+	if !entityIDPattern.MatchString(trimmed) {
+		return ""
 	}
-	return id
+	return trimmed
 }