Refactor collect.py into focused modules

- data_model.py  : _str, _phys, load_store, save_store, auto_out_path
- we_connect.py  : domain extractors, ALL_DOMAINS, connect,
                   select_vehicle, collect_snapshot
- network.py     : TCP push server (start_push_server, broadcast)
- log_config.py  : logging setup
- collect.py     : run() loop and CLI, wired to the above modules

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

log_config.py

@@ -0,0 +1,8 @@
+import logging
+
+
+def setup(verbose: bool) -> None:
+    logging.basicConfig(
+        level=logging.DEBUG if verbose else logging.INFO,
+        format="%(asctime)s %(levelname)s %(message)s",
+    )