feat: add stats page

internal/model/feedback.go

@@ -0,0 +1,28 @@
+package model
+
+import "time"
+
+// Feedback is a user-submitted message — bug report, feature request,
+// or general comment — captured by the /feedback page. Surfaced to
+// admins both via the /stats page and via an email fan-out on insert.
+//
+// UserID is a pointer so the model can carry anonymous submissions
+// (logged-out visitors) and orphaned rows (the submitter has since
+// deleted their account — the FK is set null). ContactEmail is the
+// optional reply-to filled in by anonymous submitters.
+//
+// AuthorHandle / AuthorName / AuthorEmail are populated by joins in
+// the repo's lookup helpers (used by the admin email template and the
+// /stats page). They're nil for anonymous rows.
+type Feedback struct {
+	ID           string    `json:"id"`
+	UserID       *string   `json:"user_id,omitempty"`
+	Category     string    `json:"category"`
+	Message      string    `json:"message"`
+	ContactEmail *string   `json:"contact_email,omitempty"`
+	CreatedAt    time.Time `json:"created_at"`
+
+	AuthorHandle *string `json:"author_handle,omitempty"`
+	AuthorName   *string `json:"author_name,omitempty"`
+	AuthorEmail  *string `json:"-"` // server-side only; never serialised
+}