Phase 14: build reinject blocks from tracked paths — loose skill disk fallback

buildReinjectBlocks uses tracked filePath/baseDir when resourceLoader has no entry and requireRegistered is false, completing defer-path B-002 injection.

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

src/reinject.ts

@@ -179,11 +179,18 @@ export function buildReinjectBlocks(
 			continue;
 		}
 		const registered = registeredByName.get(name);
+		const filePath = registered?.filePath ?? tracked.filePath;
+		const baseDir = registered?.baseDir ?? tracked.baseDir;
 		if (!registered) {
-			notifySkippedSkill(ctx, name, "no longer registered");
-			continue;
-		}
-		if (!existsSync(registered.filePath)) {
+			if (settings.requireRegistered) {
+				notifySkippedSkill(ctx, name, "no longer registered");
+				continue;
+			}
+			if (!existsSync(tracked.filePath)) {
+				notifySkippedSkill(ctx, name, "SKILL.md not found on disk");
+				continue;
+			}
+		} else if (!existsSync(filePath)) {
 			notifySkippedSkill(ctx, name, "SKILL.md not found on disk");
 			continue;
 		}
@@ -192,8 +199,8 @@ export function buildReinjectBlocks(
 				expandSkill(
 					{
 						name: tracked.name,
-						filePath: registered.filePath,
-						baseDir: registered.baseDir,
+						filePath,
+						baseDir,
 					},
 					settings.suffix,
 				),