Move server modules into server/ package

data_model, log_config, network, storage_helpers, we_connect are now
under server/. collect.py stays in the project root and imports via
the server package.

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

server/network.py

@@ -0,0 +1,64 @@
+import json
+import logging
+import socket
+import threading
+
+log = logging.getLogger(__name__)
+
+
+def _accept_loop(
+    server_sock: socket.socket,
+    clients: list,
+    lock: threading.Lock,
+    last_snapshot: dict,
+) -> None:
+    while True:
+        try:
+            conn, addr = server_sock.accept()
+            log.info("Push client connected from %s", addr)
+            with lock:
+                if last_snapshot["data"] is not None:
+                    try:
+                        line = (json.dumps(last_snapshot["data"], default=str) + "\n").encode()
+                        conn.sendall(line)
+                    except OSError:
+                        log.debug("Failed to send initial snapshot to %s", addr)
+                        conn.close()
+                        continue
+                clients.append(conn)
+        except OSError:
+            break
+
+
+def broadcast(snapshot: dict, clients: list, lock: threading.Lock, last_snapshot: dict) -> None:
+    line = (json.dumps(snapshot, default=str) + "\n").encode()
+    with lock:
+        last_snapshot["data"] = snapshot
+        dead = []
+        for conn in clients:
+            try:
+                conn.sendall(line)
+            except OSError:
+                dead.append(conn)
+        for conn in dead:
+            clients.remove(conn)
+            conn.close()
+            log.info("Push client disconnected")
+
+
+def start_push_server(host: str, port: int) -> tuple:
+    server_sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    server_sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    server_sock.bind((host, port))
+    server_sock.listen()
+    clients: list = []
+    lock = threading.Lock()
+    last_snapshot: dict = {"data": None}
+    t = threading.Thread(
+        target=_accept_loop,
+        args=(server_sock, clients, lock, last_snapshot),
+        daemon=True,
+    )
+    t.start()
+    log.info("Push server listening on %s:%d", host, port)
+    return clients, lock, last_snapshot