feat(backend): jwt middleware, login with redis rate limit, /auth/me

backend/internal/redispkg/redis_test.go

@@ -0,0 +1,24 @@
+package redispkg
+
+import (
+	"context"
+	"testing"
+	"time"
+)
+
+func TestDisabledIsSafe(t *testing.T) {
+	r := New("")
+	ctx := context.Background()
+	if _, ok := r.Get(ctx, "x"); ok {
+		t.Fatal("disabled Get must miss")
+	}
+	r.Set(ctx, "x", "y", time.Second) // 不 panic
+	if n := r.IncrWindow(ctx, "k", time.Second); n != 1 {
+		t.Fatal("disabled IncrWindow must allow")
+	}
+	un, ok := r.Lock(ctx, "lk", time.Second)
+	if !ok {
+		t.Fatal("disabled Lock must always acquire")
+	}
+	un()
+}