Release v2.1.3

What's fixed

• Keep Codex history visible after switching API/provider by syncing every session_meta entry in rollout JSONL files, not only the first line.
• Make the macOS watcher keep checking history while CDP/helper are already up, so normally launched Codex can repair provider/model visibility after an API switch.
• Avoid unsafe HTTP helper fallback from app:// pages when the in-page bridge is unavailable.

Validation

• pytest -q: 358 passed
• pytest -q tests/test_history_sync.py tests/test_watcher.py tests/test_renderer_script.py: 86 passed
• node --check codex_mate/inject/renderer-inject.js
• git diff --check
• python -m codex_mate doctor --json
• python -m codex_mate history-status --json: mismatched_provider_threads=0, mismatched_model_threads=0