fix(ios): support Xcode 16+ team detection and fix ntohl build error

Xcode 16+/26 no longer writes IDEProvisioningTeams to the preferences
plist, breaking ios-team-id.sh for newly signed-in accounts. Add
provisioning profile fallback and actionable error when an account
exists but no team ID can be resolved. Also replace ntohl() with
UInt32(bigEndian:) for Swift 6 compatibility and gitignore Xcode
build output directories.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitignore

@@ -102,6 +102,12 @@ skills-lock.json
 
 # Local iOS signing overrides
 apps/ios/LocalSigning.xcconfig
+
+# Xcode build directories (xcodebuild output)
+apps/ios/build/
+apps/shared/OpenClawKit/build/
+Swabble/build/
+
 # Generated protocol schema (produced via pnpm protocol:gen)
 dist/protocol.schema.json
 .ant-colony/

scripts/ios-team-id.sh

@@ -80,9 +80,45 @@ load_teams_from_legacy_defaults_key() {
   )
 }
 
+load_teams_from_xcode_managed_profiles() {
+  local profiles_dir="${HOME}/Library/MobileDevice/Provisioning Profiles"
+  [[ -d "$profiles_dir" ]] || return 0
+
+  while IFS= read -r team; do
+    [[ -z "$team" ]] && continue
+    append_team "$team" "0" ""
+  done < <(
+    for p in "${profiles_dir}"/*.mobileprovision; do
+      [[ -f "$p" ]] || continue
+      security cms -D -i "$p" 2>/dev/null \
+        | /usr/bin/python3 -c '
+import plistlib, sys
+try:
+    d = plistlib.load(sys.stdin.buffer)
+    for tid in d.get("TeamIdentifier", []):
+        print(tid)
+except Exception:
+    pass
+' 2>/dev/null
+    done | sort -u
+  )
+}
+
+has_xcode_account() {
+  local plist_path="${HOME}/Library/Preferences/com.apple.dt.Xcode.plist"
+  [[ -f "$plist_path" ]] || return 1
+  local accts
+  accts="$(defaults read com.apple.dt.Xcode DVTDeveloperAccountManagerAppleIDLists 2>/dev/null || true)"
+  [[ -n "$accts" ]] && [[ "$accts" != *"does not exist"* ]] && grep -q 'identifier' <<< "$accts"
+}
+
 load_teams_from_xcode_preferences
 load_teams_from_legacy_defaults_key
 
+if [[ ${#team_ids[@]} -eq 0 ]]; then
+  load_teams_from_xcode_managed_profiles
+fi
+
 if [[ ${#team_ids[@]} -eq 0 && "$allow_keychain_fallback" == "1" ]]; then
   while IFS= read -r team; do
     [[ -z "$team" ]] && continue
@@ -95,7 +131,19 @@ if [[ ${#team_ids[@]} -eq 0 && "$allow_keychain_fallback" == "1" ]]; then
 fi
 
 if [[ ${#team_ids[@]} -eq 0 ]]; then
-  if [[ "$allow_keychain_fallback" == "1" ]]; then
+  if has_xcode_account; then
+    echo "An Apple account is signed in to Xcode, but no Team ID could be resolved." >&2
+    echo "" >&2
+    echo "On Xcode 16+, team data is not written until you build a project." >&2
+    echo "To fix this, do ONE of the following:" >&2
+    echo "" >&2
+    echo "  1. Open the iOS project in Xcode, select your Team in Signing &" >&2
+    echo "     Capabilities, and build once. Then re-run this script." >&2
+    echo "" >&2
+    echo "  2. Set your Team ID directly:" >&2
+    echo "       export IOS_DEVELOPMENT_TEAM=<your-10-char-team-id>" >&2
+    echo "     Find your Team ID at: https://developer.apple.com/account#MembershipDetailsCard" >&2
+  elif [[ "$allow_keychain_fallback" == "1" ]]; then
     echo "No Apple Team ID found. Open Xcode or install signing certificates first." >&2
   else
     echo "No Apple Team ID found in Xcode accounts. Open Xcode → Settings → Accounts and sign in, then retry." >&2