fix: resolve all CI test failures (19 fixes across 6 files) (#519)

- canonical-session: fall back to JSON file recording when the loaded
  state-store module has no writer methods (factory vs instance)
- install-executor: skip node_modules and .git dirs in listFilesRecursive
  to prevent ETIMEDOUT copying thousands of .opencode dependency files
- ecc.js: increase maxBuffer to 10MB for spawned subcommands to prevent
  ENOBUFS on large install plan JSON output
- install-apply.test: update Cursor and Antigravity path assertions to
  match flattened rule layout and remapped dirs (workflows, skills)
- ecc.test: increase maxBuffer in test runner to handle large output
- orchestrate-codex-worker.sh: guard against unreadable task file before
  cat, write failure status and handoff artifacts on early exit

scripts/ecc.js

@@ -150,6 +150,7 @@ function runCommand(commandName, args) {
       cwd: process.cwd(),
       env: process.env,
       encoding: 'utf8',
+      maxBuffer: 10 * 1024 * 1024,
     }
   );
 

scripts/lib/install-executor.js

@@ -83,6 +83,11 @@ function validateLegacyTarget(target) {
   }
 }
 
+const IGNORED_DIRECTORY_NAMES = new Set([
+  'node_modules',
+  '.git',
+]);
+
 function listFilesRecursive(dirPath) {
   if (!fs.existsSync(dirPath)) {
     return [];
@@ -94,6 +99,9 @@ function listFilesRecursive(dirPath) {
   for (const entry of entries) {
     const absolutePath = path.join(dirPath, entry.name);
     if (entry.isDirectory()) {
+      if (IGNORED_DIRECTORY_NAMES.has(entry.name)) {
+        continue;
+      }
       const childFiles = listFilesRecursive(absolutePath);
       for (const childFile of childFiles) {
         files.push(path.join(entry.name, childFile));

scripts/lib/session-adapters/canonical-session.js

@@ -348,7 +348,10 @@ function persistCanonicalSnapshot(snapshot, options = {}) {
   const writer = resolveStateStoreWriter(stateStore);
 
   if (stateStore && !writer) {
-    throw new Error('State store does not expose a supported session snapshot writer');
+    // The loaded object is a factory module (e.g. has createStateStore but no
+    // writer methods).  Treat it the same as a missing state store and fall
+    // through to the JSON-file recording path below.
+    return writeFallbackSessionRecording(snapshot, options);
   }
 
   if (writer) {

scripts/orchestrate-codex-worker.sh

@@ -31,6 +31,21 @@ EOF
 }
 
 mkdir -p "$(dirname "$handoff_file")" "$(dirname "$status_file")"
+
+if [[ ! -r "$task_file" ]]; then
+  write_status "failed" "- Error: task file is missing or unreadable (\`$task_file\`)"
+  {
+    echo "# Handoff"
+    echo
+    echo "- Failed: $(timestamp)"
+    echo "- Branch: \`$(git rev-parse --abbrev-ref HEAD)\`"
+    echo "- Worktree: \`$(pwd)\`"
+    echo
+    echo "Task file is missing or unreadable: \`$task_file\`"
+  } > "$handoff_file"
+  exit 1
+fi
+
 write_status "running" "- Task file: \`$task_file\`"
 
 prompt_file="$(mktemp)"