Update core scanner, parser, SSH client, and UI

db.py

@@ -25,9 +25,17 @@ def init_db():
             hostname     TEXT,
             mgmt_ip      TEXT,
             description  TEXT,
+            firmware     TEXT DEFAULT '',
+            vendor       TEXT DEFAULT '',
             last_seen    TEXT
         )
     """)
+    # Migrate existing DBs that predate firmware/vendor columns
+    for col, default in [('firmware', ''), ('vendor', '')]:
+        try:
+            c.execute(f"ALTER TABLE switches ADD COLUMN {col} TEXT DEFAULT '{default}'")
+        except Exception:
+            pass  # Column already exists
 
     c.execute("""
         CREATE TABLE IF NOT EXISTS links (
@@ -70,18 +78,20 @@ def init_db():
     conn.close()
 
 
-def upsert_switch(chassis_id, hostname, mgmt_ip, description):
+def upsert_switch(chassis_id, hostname, mgmt_ip, description, firmware='', vendor=''):
     conn = get_conn()
     conn.execute("""
-        INSERT INTO switches (chassis_id, hostname, mgmt_ip, description, last_seen)
-        VALUES (?, ?, ?, ?, datetime('now'))
+        INSERT INTO switches (chassis_id, hostname, mgmt_ip, description, firmware, vendor, last_seen)
+        VALUES (?, ?, ?, ?, ?, ?, datetime('now'))
         ON CONFLICT(chassis_id) DO UPDATE SET
             hostname    = excluded.hostname,
-            mgmt_ip     = CASE WHEN excluded.mgmt_ip != '' AND excluded.mgmt_ip NOT LIKE '%.%.%.%' = 0
+            mgmt_ip     = CASE WHEN excluded.mgmt_ip != '' AND excluded.mgmt_ip LIKE '%.%.%.%'
                                THEN excluded.mgmt_ip ELSE mgmt_ip END,
             description = CASE WHEN excluded.description != '' THEN excluded.description ELSE description END,
+            firmware    = CASE WHEN excluded.firmware    != '' THEN excluded.firmware    ELSE firmware    END,
+            vendor      = CASE WHEN excluded.vendor      != '' THEN excluded.vendor      ELSE vendor      END,
             last_seen   = excluded.last_seen
-    """, (chassis_id, hostname, mgmt_ip, description))
+    """, (chassis_id, hostname, mgmt_ip, description, firmware, vendor))
     conn.commit()
     conn.close()