add `/<uuid> route + backend handling

migration.sql

@@ -1,26 +1,26 @@
 -- Enable foreign key constraints
 PRAGMA foreign_keys = ON;
 
-CREATE TABLE user (
-    uuid TEXT PRIMARY KEY,
-    name TEXT NOT NULL
+CREATE TABLE client (
+    uuid TEXT PRIMARY KEY NOT NULL,
+    name TEXT 
 );
 
 CREATE TABLE camera (
-    uuid TEXT PRIMARY KEY,
+    uuid TEXT PRIMARY KEY NOT NULL,
     desc TEXT,
     name TEXT NOT NULL
 );
 
 CREATE TABLE sightings (
-    user_uuid TEXT NOT NULL,
-    sighted_at DATETIME NOT NULL,
+    client_uuid TEXT NOT NULL,
+    sighted_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
     camera_id TEXT NOT NULL,
-    FOREIGN KEY (user_uuid) REFERENCES user(uuid) ON DELETE CASCADE ON UPDATE CASCADE,
+    FOREIGN KEY (client_uuid) REFERENCES client(uuid) ON DELETE CASCADE ON UPDATE CASCADE,
     FOREIGN KEY (camera_id) REFERENCES camera(uuid) ON DELETE CASCADE ON UPDATE CASCADE,
-    UNIQUE (user_uuid, camera_id)
+    UNIQUE (client_uuid, camera_id)
 );
 
 -- Create indexes for better performance on foreign key lookups
-CREATE INDEX idx_sightings_user_uuid ON sightings(user_uuid);
+CREATE INDEX idx_sightings_client_uuid ON sightings(client_uuid);
 CREATE INDEX idx_sightings_camera_id ON sightings(camera_id);