Scaffold bggpipe: typer CLI, config loading, title normalization

uv project with typer/httpx/rapidfuzz, ruff and pytest wired into
pyproject. Six stub subcommands matching the pipeline stages, config.toml
plus BGG_USERNAME env override, accent/ampersand/article-safe title
normalization with tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

tests/conftest.py

@@ -0,0 +1,23 @@
+from __future__ import annotations
+
+import pytest
+
+
+def pytest_addoption(parser: pytest.Parser) -> None:
+    parser.addoption(
+        "--run-live",
+        action="store_true",
+        default=False,
+        help="Run tests marked 'live' (hit the real BGG API, read-only)",
+    )
+
+
+def pytest_collection_modifyitems(
+    config: pytest.Config, items: list[pytest.Item]
+) -> None:
+    if config.getoption("--run-live"):
+        return
+    skip_live = pytest.mark.skip(reason="live BGG test; pass --run-live to enable")
+    for item in items:
+        if "live" in item.keywords:
+            item.add_marker(skip_live)