feat: inbox actor tracking, issue detail extraction, UI polish

- Add actor_type/actor_id to inbox items for proper attribution
- Extract issue detail into features/issues/components/issue-detail.tsx
- Inbox page and store updates for actor-based notifications
- Sidebar, layout, and actor-avatar refinements

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

server/internal/handler/comment.go

@@ -103,10 +103,11 @@ func (h *Handler) CreateComment(w http.ResponseWriter, r *http.Request) {
 	resp := commentToResponse(comment)
 	slog.Info("comment created", append(logger.RequestAttrs(r), "comment_id", uuidToString(comment.ID), "issue_id", issueID)...)
 	h.publish(protocol.EventCommentCreated, uuidToString(issue.WorkspaceID), "member", userID, map[string]any{
-		"comment":              resp,
-		"issue_title":          issue.Title,
-		"issue_assignee_type":  textToPtr(issue.AssigneeType),
-		"issue_assignee_id":    uuidToPtr(issue.AssigneeID),
+		"comment":             resp,
+		"issue_title":         issue.Title,
+		"issue_assignee_type": textToPtr(issue.AssigneeType),
+		"issue_assignee_id":   uuidToPtr(issue.AssigneeID),
+		"issue_status":        issue.Status,
 	})
 
 	writeJSON(w, http.StatusCreated, resp)

server/internal/handler/inbox.go

@@ -24,6 +24,9 @@ type InboxItemResponse struct {
 	Read          bool    `json:"read"`
 	Archived      bool    `json:"archived"`
 	CreatedAt     string  `json:"created_at"`
+	IssueStatus   *string `json:"issue_status"`
+	ActorType     *string `json:"actor_type"`
+	ActorID       *string `json:"actor_id"`
 }
 
 func inboxToResponse(i db.InboxItem) InboxItemResponse {
@@ -40,6 +43,28 @@ func inboxToResponse(i db.InboxItem) InboxItemResponse {
 		Read:          i.Read,
 		Archived:      i.Archived,
 		CreatedAt:     timestampToString(i.CreatedAt),
+		ActorType:     textToPtr(i.ActorType),
+		ActorID:       uuidToPtr(i.ActorID),
+	}
+}
+
+func inboxRowToResponse(r db.ListInboxItemsRow) InboxItemResponse {
+	return InboxItemResponse{
+		ID:            uuidToString(r.ID),
+		WorkspaceID:   uuidToString(r.WorkspaceID),
+		RecipientType: r.RecipientType,
+		RecipientID:   uuidToString(r.RecipientID),
+		Type:          r.Type,
+		Severity:      r.Severity,
+		IssueID:       uuidToPtr(r.IssueID),
+		Title:         r.Title,
+		Body:          textToPtr(r.Body),
+		Read:          r.Read,
+		Archived:      r.Archived,
+		CreatedAt:     timestampToString(r.CreatedAt),
+		IssueStatus:   textToPtr(r.IssueStatus),
+		ActorType:     textToPtr(r.ActorType),
+		ActorID:       uuidToPtr(r.ActorID),
 	}
 }
 
@@ -75,7 +100,7 @@ func (h *Handler) ListInbox(w http.ResponseWriter, r *http.Request) {
 
 	resp := make([]InboxItemResponse, len(items))
 	for i, item := range items {
-		resp[i] = inboxToResponse(item)
+		resp[i] = inboxRowToResponse(item)
 	}
 
 	writeJSON(w, http.StatusOK, resp)