feat: add Textual TUI with auto-refresh, leaders, playoff picture, and box score

Introduces an interactive terminal UI via the `--tui` flag backed by the
Textual framework. Scores and standings auto-refresh on a configurable
interval (default 60s, minimum 10s) using asyncio with nba_api calls
offloaded to a thread pool to keep the event loop unblocked.

New tabs:
- Scores / Standings (existing views, now live-updating)
- Leaders: top-25 by stat category, cycle with < / > keys
- Playoff Picture: conference seeding with clinch/elimination status
- Box Score: per-player live stats, load any game with keys 1–9

Refactored scores.py and standings.py to separate rendering from I/O
(get_scoreboard_table, get_east/west_standings_table), keeping the
existing static CLI path fully intact. Added -sc / -st shortcut flags.

Adds textual>=0.89.1,<7.0 dependency, build-system declaration for uv,
and package-data entry for the bundled .tcss stylesheet.

1 files changed, 19 insertions, 0 deletions

diff --git a/nba_scores.egg-info/SOURCES.txt b/nba_scores.egg-info/SOURCES.txt
new file mode 100644
index 0000000..b5c9c92
--- /dev/null
+++ b/nba_scores.egg-info/SOURCES.txt
@@ -0,0 +1,19 @@
+LICENSE
+README.md
+pyproject.toml
+nba/__init__.py
+nba/__main__.py
+nba/cli.py
+nba/fetch_data.py
+nba/scores.py
+nba/standings.py
+nba/tui/__init__.py
+nba/tui/app.py
+nba/tui/styles.tcss
+nba/tui/widgets.py
+nba_scores.egg-info/PKG-INFO
+nba_scores.egg-info/SOURCES.txt
+nba_scores.egg-info/dependency_links.txt
+nba_scores.egg-info/entry_points.txt
+nba_scores.egg-info/requires.txt
+nba_scores.egg-info/top_level.txt
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