Support issue scheme quicklook links

ui/src/components/MarkdownBody.test.tsx

@@ -146,6 +146,20 @@ describe("MarkdownBody", () => {
     expect(html).toContain(">http://localhost:3100/PAP/issues/PAP-1179<");
   });
 
+  it("rewrites issue scheme links to internal issue links", () => {
+    const html = renderMarkdown("See issue://PAP-1310 and issue://:PAP-1311.", [
+      { identifier: "PAP-1310", status: "done" },
+      { identifier: "PAP-1311", status: "blocked" },
+    ]);
+
+    expect(html).toContain('href="/issues/PAP-1310"');
+    expect(html).toContain('href="/issues/PAP-1311"');
+    expect(html).toContain(">issue://PAP-1310<");
+    expect(html).toContain(">issue://:PAP-1311<");
+    expect(html).toContain("text-green-600");
+    expect(html).toContain("text-red-600");
+  });
+
   it("linkifies issue identifiers inside inline code spans", () => {
     const html = renderMarkdown("Reference `PAP-1271` here.", [
       { identifier: "PAP-1271", status: "done" },

ui/src/lib/issue-reference.test.ts

@@ -11,7 +11,7 @@ describe("issue-reference", () => {
     expect(parseIssuePathIdFromPath("http://localhost:3100/PAP/issues/PAP-1179")).toBe("PAP-1179");
   });
 
-  it("normalizes bare identifiers and issue URLs into internal links", () => {
+  it("normalizes bare identifiers, issue URLs, and issue scheme links into internal links", () => {
     expect(parseIssueReferenceFromHref("pap-1271")).toEqual({
       issuePathId: "PAP-1271",
       href: "/issues/PAP-1271",
@@ -20,6 +20,14 @@ describe("issue-reference", () => {
       issuePathId: "PAP-1179",
       href: "/issues/PAP-1179",
     });
+    expect(parseIssueReferenceFromHref("issue://PAP-1310")).toEqual({
+      issuePathId: "PAP-1310",
+      href: "/issues/PAP-1310",
+    });
+    expect(parseIssueReferenceFromHref("issue://:PAP-1311")).toEqual({
+      issuePathId: "PAP-1311",
+      href: "/issues/PAP-1311",
+    });
   });
 
   it("normalizes exact inline-code-like issue identifiers", () => {

ui/src/lib/issue-reference.ts

@@ -6,7 +6,8 @@ type MarkdownNode = {
 };
 
 const BARE_ISSUE_IDENTIFIER_RE = /^[A-Z][A-Z0-9]+-\d+$/i;
-const ISSUE_REFERENCE_TOKEN_RE = /https?:\/\/[^\s<>()]+|\b[A-Z][A-Z0-9]+-\d+\b/gi;
+const ISSUE_SCHEME_RE = /^issue:\/\/:?([^?#\s]+)(?:[?#].*)?$/i;
+const ISSUE_REFERENCE_TOKEN_RE = /issue:\/\/:?[^\s<>()]+|https?:\/\/[^\s<>()]+|\b[A-Z][A-Z0-9]+-\d+\b/gi;
 
 export function parseIssuePathIdFromPath(pathOrUrl: string | null | undefined): string | null {
   if (!pathOrUrl) return null;
@@ -29,6 +30,16 @@ export function parseIssuePathIdFromPath(pathOrUrl: string | null | undefined):
 
 export function parseIssueReferenceFromHref(href: string | null | undefined) {
   if (!href) return null;
+  const trimmed = href.trim();
+  const issueSchemeMatch = trimmed.match(ISSUE_SCHEME_RE);
+  if (issueSchemeMatch?.[1]) {
+    const issuePathId = decodeURIComponent(issueSchemeMatch[1]);
+    return {
+      issuePathId,
+      href: `/issues/${encodeURIComponent(issuePathId)}`,
+    };
+  }
+
   const pathId = parseIssuePathIdFromPath(href);
   if (pathId) {
     return {
@@ -37,7 +48,6 @@ export function parseIssueReferenceFromHref(href: string | null | undefined) {
     };
   }
 
-  const trimmed = href.trim();
   if (!BARE_ISSUE_IDENTIFIER_RE.test(trimmed)) return null;
   const normalized = trimmed.toUpperCase();
   return {