fix: two pre-existing CI test failures

- agents-file: sort category headings alphabetically in buildSection()
  (Map iteration order depended on DB query order, not alphabetical)
- ltm test: use unique titles per iteration to avoid dedup guard
  (Date.now() returned same value on fast CI, hitting title dedup)

Author: BYK

src/agents-file.ts

@@ -175,7 +175,7 @@ function buildSection(projectPath: string): string {
   // Section heading
   out.push("## Long-term Knowledge");
 
-  for (const [category, items] of grouped) {
+  for (const [category, items] of [...grouped.entries()].sort((a, b) => a[0].localeCompare(b[0]))) {
     out.push("");
     out.push(`### ${category.charAt(0).toUpperCase() + category.slice(1)}`);
     out.push("");

test/ltm.test.ts

@@ -157,11 +157,11 @@ describe("ltm — UUIDv7 IDs", () => {
   });
 
   test("multiple create() calls produce monotonically increasing IDs", () => {
-    const ids = Array.from({ length: 5 }, () =>
+    const ids = Array.from({ length: 5 }, (_, i) =>
       ltm.create({
         projectPath: PROJ,
         category: "pattern",
-        title: `Entry ${Date.now()}`,
+        title: `Monotonic entry ${i}`,
         content: "Content",
         scope: "project",
       }),