fix(sanitize): сохранять текст после закрытия тега

src/utils/__tests__/sanitize.test.ts

@@ -265,6 +265,11 @@ describe("sanitizeForPrompt", () => {
       expect(sanitizeForPrompt(input)).toBe("3 < 5 and 7 > 2");
     });
 
+    it("should preserve plain text after a tag when it is followed by >", () => {
+      expect(sanitizeForPrompt("<a>foo>bar")).toBe("foo>bar");
+      expect(sanitizeForPrompt("<b>hello</b> world")).toBe("hello world");
+    });
+
     it("should handle malformed tags", () => {
       const input = "Text <incomplete";
       expect(sanitizeForPrompt(input)).toBe("Text <incomplete");
@@ -821,6 +826,10 @@ describe("sanitizeForContext", () => {
 });
 
 describe("sanitizeTaskDescription", () => {
+  it("should preserve plain text after a tag when it is followed by >", () => {
+    expect(sanitizeTaskDescription("<a>foo>bar")).toBe("foo>bar");
+  });
+
   it("should remove fragmented nested script tags", () => {
     const input = "<scrip<script>t>alert(1)</scrip<script>t>";
     const result = sanitizeTaskDescription(input);

src/utils/sanitize.ts

@@ -13,13 +13,15 @@ function stripMarkupTags(text: string): string {
     if (text[i] === "<" && isTagStart(text, i)) {
       let end = text.indexOf(">", i + 1);
       if (end !== -1) {
-        let next = end + 1;
-        while (next < text.length) {
-          const fragmentEnd = text.indexOf(">", next);
-          if (fragmentEnd === -1) break;
-          if (!isTagNameFragment(text.slice(next, fragmentEnd))) break;
-          end = fragmentEnd;
-          next = end + 1;
+        if (text.slice(i + 1, end).includes("<")) {
+          let next = end + 1;
+          while (next < text.length) {
+            const fragmentEnd = text.indexOf(">", next);
+            if (fragmentEnd === -1) break;
+            if (!isTagNameFragment(text.slice(next, fragmentEnd))) break;
+            end = fragmentEnd;
+            next = end + 1;
+          }
         }
         i = end;
         continue;