Trigger analyst on edited comments, not just new ones

An edited comment during analysis is equally meaningful as a new one
for continuing the conversation with the analyst.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/handlers/issue-comment.ts

@@ -12,8 +12,8 @@ export function issueComment(config: Config, coder: CoderClient) {
   return async (c: Context) => {
     const event = await c.req.json<IssueCommentEvent>();
 
-    if (event.action !== "created") {
-      return c.text("ignored: not a created event", 200);
+    if (event.action !== "created" && event.action !== "edited") {
+      return c.text("ignored: not a created or edited event", 200);
     }
 
     const commenter = event.comment.user.login;