fix: AI review loading UX and Gate preview snapshot time filter SQL

Co-authored-by: Cursor <cursoragent@cursor.com>

static/ai_review_render.js

@@ -109,10 +109,54 @@
         return html.join("\n");
     }
 
+    var _genBusy = false;
+
+    function setGenerating(opts) {
+        opts = opts || {};
+        _genBusy = true;
+        var wrap = document.getElementById(opts.wrapId);
+        var el = document.getElementById(opts.elId);
+        var btn = opts.btnId ? document.getElementById(opts.btnId) : null;
+        if (wrap) wrap.style.display = "block";
+        if (el) {
+            el.classList.remove("ai-result-md");
+            el.classList.add("is-loading");
+            el.innerHTML = "";
+            el.innerText = opts.message || "生成复盘中，请稍候…";
+        }
+        if (btn) {
+            btn.disabled = true;
+            if (!btn.dataset.aiOrigText) btn.dataset.aiOrigText = btn.textContent;
+            btn.textContent = opts.btnLabel || "生成中…";
+        }
+        if (wrap && wrap.scrollIntoView) {
+            try {
+                wrap.scrollIntoView({ behavior: "smooth", block: "nearest" });
+            } catch (e) { /* ignore */ }
+        }
+    }
+
+    function clearGenerating(btnId) {
+        _genBusy = false;
+        var btn = btnId ? document.getElementById(btnId) : null;
+        if (btn) {
+            btn.disabled = false;
+            if (btn.dataset.aiOrigText) {
+                btn.textContent = btn.dataset.aiOrigText;
+                delete btn.dataset.aiOrigText;
+            }
+        }
+    }
+
+    function isGenerating() {
+        return _genBusy;
+    }
+
     function setElementMarkdown(el, rawText) {
         if (!el) return;
         var raw = String(rawText || "");
         el.dataset.markdownRaw = raw;
+        el.classList.remove("is-loading");
         el.classList.add("ai-result-md");
         el.innerHTML = renderMarkdown(raw);
     }
@@ -130,5 +174,8 @@
         renderMarkdown: renderMarkdown,
         setElementMarkdown: setElementMarkdown,
         getElementMarkdown: getElementMarkdown,
+        setGenerating: setGenerating,
+        clearGenerating: clearGenerating,
+        isGenerating: isGenerating,
     };
 })(typeof window !== "undefined" ? window : this);