feat(schedule): add course table screens and navigation

Add complete schedule functionality including:
- Schedule screen with weekly course table view
- Course detail screen with transparent modal presentation
- New ScheduleStack navigator integrated into main tab bar
- Schedule service for API interactions
- Type definitions for course entities

Also includes bug fixes for group invite/request handlers
to include required groupId parameter.

internal/pkg/redis/redis.go

@@ -117,3 +117,117 @@ func (c *Client) Close() error {
 func (c *Client) IsMiniRedis() bool {
 	return c.isMiniRedis
 }
+
+// ==================== Hash 操作 ====================
+
+// HSet 设置 Hash 字段
+func (c *Client) HSet(ctx context.Context, key string, field string, value interface{}) error {
+	return c.rdb.HSet(ctx, key, field, value).Err()
+}
+
+// HMSet 批量设置 Hash 字段
+func (c *Client) HMSet(ctx context.Context, key string, values map[string]interface{}) error {
+	return c.rdb.HMSet(ctx, key, values).Err()
+}
+
+// HGet 获取 Hash 字段值
+func (c *Client) HGet(ctx context.Context, key string, field string) (string, error) {
+	return c.rdb.HGet(ctx, key, field).Result()
+}
+
+// HMGet 批量获取 Hash 字段值
+func (c *Client) HMGet(ctx context.Context, key string, fields ...string) ([]interface{}, error) {
+	return c.rdb.HMGet(ctx, key, fields...).Result()
+}
+
+// HGetAll 获取 Hash 所有字段
+func (c *Client) HGetAll(ctx context.Context, key string) (map[string]string, error) {
+	return c.rdb.HGetAll(ctx, key).Result()
+}
+
+// HDel 删除 Hash 字段
+func (c *Client) HDel(ctx context.Context, key string, fields ...string) error {
+	return c.rdb.HDel(ctx, key, fields...).Err()
+}
+
+// HExists 检查 Hash 字段是否存在
+func (c *Client) HExists(ctx context.Context, key string, field string) (bool, error) {
+	return c.rdb.HExists(ctx, key, field).Result()
+}
+
+// HLen 获取 Hash 字段数量
+func (c *Client) HLen(ctx context.Context, key string) (int64, error) {
+	return c.rdb.HLen(ctx, key).Result()
+}
+
+// ==================== Sorted Set 操作 ====================
+
+// ZAdd 添加 Sorted Set 成员
+func (c *Client) ZAdd(ctx context.Context, key string, score float64, member string) error {
+	return c.rdb.ZAdd(ctx, key, redis.Z{Score: score, Member: member}).Err()
+}
+
+// ZAddArgs 批量添加 Sorted Set 成员
+func (c *Client) ZAddArgs(ctx context.Context, key string, members ...redis.Z) error {
+	return c.rdb.ZAdd(ctx, key, members...).Err()
+}
+
+// ZRangeByScore 按分数范围获取成员（升序）
+func (c *Client) ZRangeByScore(ctx context.Context, key string, min, max string, offset, count int64) ([]string, error) {
+	return c.rdb.ZRangeByScore(ctx, key, &redis.ZRangeBy{
+		Min:    min,
+		Max:    max,
+		Offset: offset,
+		Count:  count,
+	}).Result()
+}
+
+// ZRevRangeByScore 按分数范围获取成员（降序）
+func (c *Client) ZRevRangeByScore(ctx context.Context, key string, max, min string, offset, count int64) ([]string, error) {
+	return c.rdb.ZRevRangeByScore(ctx, key, &redis.ZRangeBy{
+		Min:    min,
+		Max:    max,
+		Offset: offset,
+		Count:  count,
+	}).Result()
+}
+
+// ZRange 获取指定范围的成员（升序）
+func (c *Client) ZRange(ctx context.Context, key string, start, stop int64) ([]string, error) {
+	return c.rdb.ZRange(ctx, key, start, stop).Result()
+}
+
+// ZRevRange 获取指定范围的成员（降序）
+func (c *Client) ZRevRange(ctx context.Context, key string, start, stop int64) ([]string, error) {
+	return c.rdb.ZRevRange(ctx, key, start, stop).Result()
+}
+
+// ZRem 删除 Sorted Set 成员
+func (c *Client) ZRem(ctx context.Context, key string, members ...interface{}) error {
+	return c.rdb.ZRem(ctx, key, members...).Err()
+}
+
+// ZScore 获取成员分数
+func (c *Client) ZScore(ctx context.Context, key string, member string) (float64, error) {
+	return c.rdb.ZScore(ctx, key, member).Result()
+}
+
+// ZCard 获取 Sorted Set 成员数量
+func (c *Client) ZCard(ctx context.Context, key string) (int64, error) {
+	return c.rdb.ZCard(ctx, key).Result()
+}
+
+// ZCount 统计分数范围内的成员数量
+func (c *Client) ZCount(ctx context.Context, key string, min, max string) (int64, error) {
+	return c.rdb.ZCount(ctx, key, min, max).Result()
+}
+
+// ==================== Pipeline 操作 ====================
+
+// Pipeliner Pipeline 接口（使用 redis 库原生接口）
+type Pipeliner = redis.Pipeliner
+
+// Pipeline 创建 Pipeline
+func (c *Client) Pipeline() Pipeliner {
+	return c.rdb.Pipeline()
+}