- Merge get_tweet_id_by_index + get_cache_size into resolve_cached_tweet
to eliminate redundant file IO on cache miss
- Move save_tweet_cache before emit_structured so --json/--yaml modes
also persist the cache for subsequent show commands
- Extract _print_show_hint helper to reduce duplication
- Add trailing newline to cache.py
Add extensive tests for the `show` command (happy path, empty/expired/malformed cache, out-of-range, zero/negative indices) and a test helper to write cache fixtures. Harden twitter_cli.cache._load_cache to validate payload types (dict/tweets list), filter non-dict entries, and treat malformed payloads as empty; also handle missing tweet id when resolving an index. Refactor CLI output logic by extracting _emit_tweet_detail and reuse it for both `tweet` and `show`; enforce 1-based indices for `show` via click.IntRange(1) and expand the "no cached results" error text to mention other list commands. These changes improve robustness against corrupted caches and increase test coverage for cache-based behavior.
Persist last displayed tweet lists and allow opening a tweet by index.
- Add twitter_cli/cache.py: stores a short-index cache (~/.twitter-cli/last_results.json) with a 1h TTL and helpers to resolve index->tweet-id and cache size.
- Update twitter_cli/cli.py: save list results to cache, display a hint, and add `twitter show <N>` command which fetches a tweet by cached index and prints detail/replies (supports --full-text, --json, structured output, and max replies).
- Update README.md and SKILL.md to document the new `show` usage.
- Add .idea/ to .gitignore and bump package version in uv.lock to 0.8.0.
This change makes it easy to open items from the last feed/search without copying IDs.
