Update project echo files

database.sql

@@ -0,0 +1,46 @@
+DROP TABLE IF EXISTS telemetry CASCADE;
+DROP TABLE IF EXISTS system_status CASCADE;
+DROP TABLE IF EXISTS settings CASCADE;
+DROP TABLE IF EXISTS users CASCADE;
+
+CREATE TABLE users (
+    id SERIAL PRIMARY KEY,
+    username VARCHAR(50) UNIQUE NOT NULL,
+    password VARCHAR(255) NOT NULL,
+    is_admin BOOLEAN DEFAULT FALSE
+);
+
+CREATE TABLE settings (
+    id SERIAL PRIMARY KEY,
+    key VARCHAR(50) UNIQUE NOT NULL,
+    value VARCHAR(100) NOT NULL
+);
+
+CREATE TABLE telemetry (
+    id SERIAL PRIMARY KEY,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+
+    temperature_ext DOUBLE PRECISION,
+    humidity_ext DOUBLE PRECISION,
+    system_status_msg VARCHAR(100),
+
+    voltage_pv DOUBLE PRECISION,
+    current_pv DOUBLE PRECISION,
+    power_pv DOUBLE PRECISION,
+    luminosity DOUBLE PRECISION,
+
+    voltage_battery DOUBLE PRECISION,
+    current_battery DOUBLE PRECISION,
+    battery_temp DOUBLE PRECISION,
+    battery_level DOUBLE PRECISION,
+    battery_alert VARCHAR(100)
+);
+
+INSERT INTO users (username, password, is_admin)
+VALUES ('admin', 'admin123', TRUE);
+
+INSERT INTO settings (key, value)
+VALUES
+    ('min_battery_voltage', '11'),
+    ('max_battery_temperature', '60'),
+    ('min_solar_power', '5');