fix(ci-status): get_ci_status 结论区分三态——pending 不再误输出 ❌

add has_failure flag，使结论由两态（pass/fail）扩展为三态：
✅ 全部通过 / ⏳ 检查进行中 / ❌ 存在失败检查。
修复前 pending 和 failure 均输出 ❌，/ship 轮询无法区分排队与真实失败。

Feature-Confirmed: true

src-tauri/src/commands/gitea.rs

@@ -781,6 +781,7 @@ pub fn gitea_api_get_ci_status(project_id: &str, commit_sha: &str) -> Result<Str
 
     let mut lines = vec![format!("## CI 状态：commit `{}`\n", short_sha)];
     let mut all_pass = true;
+    let mut has_failure = false;
     for (ctx, s) in &latest {
         // Gitea 1.22 Actions 使用 "status" 字段；传统 commit status API 用 "state"
         let state = s["status"].as_str()
@@ -789,15 +790,17 @@ pub fn gitea_api_get_ci_status(project_id: &str, commit_sha: &str) -> Result<Str
         let desc  = s["description"].as_str().unwrap_or("");
         let icon  = match state {
             "success"               => "✅",
-            "failure" | "error" => { all_pass = false; "❌" },
+            "failure" | "error"     => { all_pass = false; has_failure = true; "❌" },
             _                       => { all_pass = false; "⏳" },
         };
         lines.push(format!("- {} `{}` — {} {}", icon, ctx, state, desc));
     }
     let conclusion = if all_pass {
         "✅ 全部通过，可以合并"
+    } else if has_failure {
+        "❌ 存在失败检查，暂不建议合并"
     } else {
-        "❌ 存在失败或等待中的检查，暂不建议合并"
+        "⏳ 检查进行中，请稍后再查"
     };
     lines.push(format!("\n**结论：{}**", conclusion));