feat: 赋能溢出截断 + 前端按已赋能量禁用按钮

- 单篇赋能上限由硬拒绝改为溢出截断，类似每日经验处理
- 前端弹窗时查询文章已赋能总量，>=10 禁用重赋，>=20 全部禁用
- GetEnergyInfo 支持 ?post_id= 返回 post_energize_total
- 文案精简为'赋能成功！+N 经验'等短句

internal/controller/energy_controller.go

@@ -37,7 +37,7 @@ func (ec *EnergyController) Energize(c *gin.Context) {
 		return
 	}
 
-	expGained, err := ec.energySvc.Energize(uid, req.PostID, req.Amount)
+	expGained, actualAmount, err := ec.energySvc.Energize(uid, req.PostID, req.Amount)
 	if err != nil {
 		switch err {
 		case common.ErrPostNotFound:
@@ -56,21 +56,30 @@ func (ec *EnergyController) Energize(c *gin.Context) {
 		return
 	}
 
+	truncated := actualAmount != req.Amount
 	common.Ok(c, gin.H{
-		"exp_gained": expGained,
-		"message":    buildEnergizeMessage(expGained),
+		"exp_gained":    expGained,
+		"actual_amount": actualAmount,
+		"truncated":     truncated,
+		"message":       buildEnergizeMessage(expGained, truncated),
 	})
 }
 
 // buildEnergizeMessage 根据获得的经验生成提示消息
-func buildEnergizeMessage(expGained int) string {
-	if expGained > 0 {
-		return "赋能成功！" + strconv.Itoa(expGained) + "经验已加入你的旅程。"
+func buildEnergizeMessage(expGained int, truncated bool) string {
+	if truncated {
+		if expGained > 0 {
+			return "单篇额度已满，实际赋能部分额度，+" + strconv.Itoa(expGained) + " 经验"
+		}
+		return "单篇额度已满，实际赋能部分额度"
 	}
-	return "赋能成功！今日赋能经验奖励已达上限，对方仍会获得激励。"
+	if expGained > 0 {
+		return "赋能成功！+" + strconv.Itoa(expGained) + " 经验"
+	}
+	return "赋能成功！今日经验已满，对方仍获得激励"
 }
 
-// GetEnergyInfo 获取域能余额和经验上限状态
+// GetEnergyInfo 获取域能余额和经验上限状态，支持 ?post_id= 查询文章赋能总量
 func (ec *EnergyController) GetEnergyInfo(c *gin.Context) {
 	uid, _, ok := common.GetGinUser(c)
 	if !ok {
@@ -78,7 +87,10 @@ func (ec *EnergyController) GetEnergyInfo(c *gin.Context) {
 		return
 	}
 
-	info, err := ec.energySvc.GetEnergyInfo(uid)
+	postIDStr := c.DefaultQuery("post_id", "0")
+	postID, _ := strconv.ParseUint(postIDStr, 10, 64)
+
+	info, err := ec.energySvc.GetEnergyInfo(uid, uint(postID))
 	if err != nil {
 		common.Error(c, http.StatusInternalServerError, "获取域能信息失败")
 		return