✨feature: Add editable hostname and operating system

app/service.py

@@ -238,7 +238,12 @@ def fetch_devices() -> list[dict]:
     with get_conn() as conn:
         rows = conn.execute(
             """
-            SELECT id, ip, hostname, os_name, mac, vendor, is_active, first_seen, last_seen
+            SELECT id, ip,
+                   COALESCE(custom_hostname, hostname) AS hostname,
+                   COALESCE(custom_os_name, os_name) AS os_name,
+                   custom_hostname,
+                   custom_os_name,
+                   mac, vendor, is_active, first_seen, last_seen
             FROM devices
             ORDER BY is_active DESC, ip ASC
             """
@@ -250,7 +255,14 @@ def fetch_device(device_id: int) -> dict | None:
     with get_conn() as conn:
         device = conn.execute(
             """
-            SELECT id, ip, hostname, os_name, mac, vendor, is_active, first_seen, last_seen
+            SELECT id, ip,
+                   COALESCE(custom_hostname, hostname) AS hostname,
+                   COALESCE(custom_os_name, os_name) AS os_name,
+                   custom_hostname,
+                   custom_os_name,
+                   hostname AS detected_hostname,
+                   os_name AS detected_os_name,
+                   mac, vendor, is_active, first_seen, last_seen
             FROM devices
             WHERE id = ?
             """,
@@ -282,6 +294,25 @@ def fetch_device(device_id: int) -> dict | None:
         return result
 
 
+def update_device_identity(device_id: int, hostname: str | None, os_name: str | None) -> dict | None:
+    normalized_hostname = (hostname or "").strip() or None
+    normalized_os_name = (os_name or "").strip() or None
+
+    with get_conn() as conn:
+        updated = conn.execute(
+            """
+            UPDATE devices
+            SET custom_hostname = ?, custom_os_name = ?
+            WHERE id = ?
+            """,
+            (normalized_hostname, normalized_os_name, device_id),
+        )
+        if updated.rowcount == 0:
+            return None
+
+    return fetch_device(device_id)
+
+
 def fetch_scans(limit: int = 20) -> list[dict]:
     with get_conn() as conn:
         rows = conn.execute(