v5 migration: add dex_report_date and install_date columns to assets table

server.py

@@ -457,6 +457,13 @@ def init_db(conn: sqlite3.Connection):
         conn.execute("ALTER TABLE assets ADD COLUMN disney_park TEXT DEFAULT NULL")
         conn.commit()
 
+    # v5 migration: dex_report_date + install_date
+    if "dex_report_date" not in asset_cols:
+        conn.execute("ALTER TABLE assets ADD COLUMN dex_report_date TEXT DEFAULT NULL")
+    if "install_date" not in asset_cols:
+        conn.execute("ALTER TABLE assets ADD COLUMN install_date TEXT DEFAULT NULL")
+    conn.commit()
+
     # Ensure service_entrances table exists with correct schema
     se_exists = conn.execute(
         "SELECT name FROM sqlite_master WHERE type='table' AND name='service_entrances'"
@@ -1005,6 +1012,7 @@ def list_assets(
     disney_park: Optional[str] = Query(None),
     disney_filter: Optional[str] = Query(None),
     q: Optional[str] = Query(None),
+    no_dex_days: Optional[int] = Query(None, ge=1),
     limit: int = Query(100, ge=1, le=2000),
     offset: int = Query(0, ge=0),
 ):
@@ -1044,6 +1052,9 @@ def list_assets(
         conditions.append("(name LIKE ? OR machine_id LIKE ? OR serial_number LIKE ? OR description LIKE ?)")
         like = f"%{q}%"
         params.extend([like, like, like, like])
+    if no_dex_days is not None:
+        conditions.append("(dex_report_date IS NULL OR dex_report_date < datetime('now', '-' || ? || ' days'))")
+        params.append(no_dex_days)
 
     where = " AND ".join(conditions)
     sql = "SELECT * FROM assets"