chore: restructure repo as worker collection

smsreceiver-worker/worker/schema.sql

@@ -0,0 +1,31 @@
+CREATE TABLE sms_messages (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  from_number TEXT NOT NULL,
+  content TEXT NOT NULL,
+  timestamp INTEGER NOT NULL,
+  device_info TEXT,
+  sim_info TEXT,
+  sign_verified INTEGER,
+  ip_address TEXT,
+  created_at TEXT
+);
+
+CREATE TABLE receive_logs (
+  id INTEGER PRIMARY KEY AUTOINCREMENT,
+  from_number TEXT NOT NULL,
+  content TEXT NOT NULL,
+  timestamp INTEGER NOT NULL,
+  sign TEXT,
+  sign_valid INTEGER,
+  ip_address TEXT,
+  status TEXT NOT NULL,
+  error_message TEXT,
+  created_at TEXT
+);
+
+CREATE INDEX idx_messages_from ON sms_messages(from_number);
+CREATE INDEX idx_messages_timestamp ON sms_messages(timestamp);
+CREATE INDEX idx_messages_created ON sms_messages(created_at);
+
+CREATE INDEX idx_logs_created ON receive_logs(created_at);
+CREATE INDEX idx_logs_status ON receive_logs(status);