Add TUI lobby settings, clickable cards, and UI polish

- Lobby: collapsible Game Settings, House Rules, Deck Style sections
- Lobby: CPU profile picker via [+], random CPU via [?], remove via [-]
- Lobby: all settings (rounds, decks, flip mode, house rules, deck colors)
  sent to server on start_game instead of hardcoded defaults
- Game: clickable cards (hand positions, deck, discard pile)
- Game: immediate visual feedback on initial card flips
- Game: action bar shows escaped keyboard hints (Keyboard: Choose [d]eck...)
- Game: play area uses fixed-width rounded box instead of horizontal lines
- Game: position numbers on card top-left corner (replacing ┌) on all states
- Game: deck color preview swatches next to style dropdown
- Fix opponent box height mismatch when match connectors present
- Rebrand to GolfCards.club
- Add spacing between status bar/opponents and above local hand

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

tui_client/pyproject.toml

@@ -0,0 +1,20 @@
+[project]
+name = "golf-tui"
+version = "0.1.0"
+description = "Terminal client for the Golf card game"
+requires-python = ">=3.11"
+dependencies = [
+    "textual>=0.47.0",
+    "websockets>=12.0",
+    "httpx>=0.25.0",
+]
+
+[project.scripts]
+golf-tui = "tui_client.__main__:main"
+
+[build-system]
+requires = ["setuptools>=68.0"]
+build-backend = "setuptools.build_meta"
+
+[tool.setuptools.packages.find]
+where = ["src"]