fix: normalize generated text in Windows CI

.gitattributes

@@ -1,3 +1,5 @@
+* text=auto eol=lf
+
 # Frozen inputs must retain their committed bytes on every platform.
 /PRD.md -text
 /FeatureSummary.md -text

scripts/verify-ci-isolation.mjs

@@ -7,6 +7,7 @@ const workflow = readFileSync(".gitea/workflows/p0a-ci.yml", "utf8");
 const gitAttributes = readFileSync(".gitattributes", "utf8");
 
 const escapeRegExp = (value) => value.replace(/[.*+?^${}()|[\]\\]/g, "\\$&");
+assert.match(gitAttributes, /^\*\s+text=auto\s+eol=lf\s*$/m);
 const frozenBytePaths = [...Object.keys(manifest.source_hashes), "tasks.manifest.json"];
 for (const path of frozenBytePaths) {
   assert.match(gitAttributes, new RegExp(`^/${escapeRegExp(path)}\\s+-text\\s*$`, "m"));