fix(continuity): ignore AppleDouble lease sidecars

server-tools/lake-lamp-continuity-guard/finalize-development.mjs

@@ -133,6 +133,10 @@ export function safeCacheRelative(worktree, candidate) {
   return { absolute, relative };
 }
 
+export function isJsonRecordName(name) {
+  return String(name).endsWith(".json") && !String(name).startsWith("._");
+}
+
 function run(file, args, options = {}) {
   return execFileSync(file, args, {
     cwd: options.cwd,
@@ -164,7 +168,7 @@ function listOwnedLeases(storeRoot, developmentId) {
   if (!fs.existsSync(directory)) return [];
   return fs
     .readdirSync(directory)
-    .filter((name) => name.endsWith(".json"))
+    .filter(isJsonRecordName)
     .map((name) => readJson(path.join(directory, name)))
     .filter((lease) => lease.development_id === developmentId);
 }

server-tools/lake-lamp-continuity-guard/finalize-development.test.mjs

@@ -4,6 +4,7 @@ import os from "node:os";
 import path from "node:path";
 import test from "node:test";
 import {
+  isJsonRecordName,
   normalizeBranch,
   normalizeCodeChannelRepository,
   normalizeReceipt,
@@ -76,3 +77,9 @@ test("cache deletion scope accepts only exact allowlisted descendants", () => {
 test("embedded finalizer self-test passes", () => {
   assert.deepEqual(selfTest(), { result: "PASS_100" });
 });
+
+test("macOS AppleDouble sidecars are never parsed as JSON records", () => {
+  assert.equal(isJsonRecordName("lease.json"), true);
+  assert.equal(isJsonRecordName("._lease.json"), false);
+  assert.equal(isJsonRecordName("lease.txt"), false);
+});