Add new tables, add automatic data cleanup with configurable duration, move company business logic into seperate folder

migrations/2026-09-07-062247-0000_add_client_statistics_table/up.sql

@@ -0,0 +1,19 @@
+
+CREATE TABLE IF NOT EXISTS client_statistics (
+    id BIGINT AUTO_INCREMENT PRIMARY KEY,
+
+    ip VARCHAR(15),
+    mac VARCHAR(17) NOT NULL,
+    antenna_ip VARCHAR(15) NOT NULL,
+    read_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
+
+    db_reading INT NOT NULL,
+    tx_ccq INT,
+    rx_ccq INT, 
+    radio_name VARCHAR(255), 
+    tx_rate VARCHAR(50), 
+    rx_rate VARCHAR(50),
+    
+    CONSTRAINT uq_client_statistics_mac UNIQUE (mac),
+    CONSTRAINT fk_client_statistics_antenna FOREIGN KEY (antenna_ip) REFERENCES antennas(ip)
+);