feat: add db migrations

internal/store/pgstore/migrations/001_create_rooms_table.sql

@@ -0,0 +1,8 @@
+CREATE TABLE IF NOT EXISTS rooms (
+	"id"	uuid		PRIMARY KEY	NOT NULL	DEFAULT	gen_random_uuid(),
+	"theme"	VARCHAR(255)			NOT NULL
+);
+
+---- create above / drop below ----
+
+DROP TABLE IF EXISTS rooms;

internal/store/pgstore/migrations/002_create_messages_table.sql

@@ -0,0 +1,13 @@
+CREATE TABLE IF NOT EXISTS messages (
+	"id"			uuid		PRIMARY KEY	NOT NULL	DEFAULT gen_random_uuid(),
+	"room_id"		uuid				NOT NULL,
+	"message"		VARCHAR(255)			NOT NULL,
+	"reaction_count"	BIGINT				NOT NULL	DEFAULT 0,
+	"answered"		BOOLEAN				NOT NULL	DEFAULT false,
+
+	FOREIGN KEY (room_id) REFERENCES rooms(id)
+);
+
+---- create above / drop below ----
+
+DROP TABLE IF EXISTS messages;

internal/store/pgstore/migrations/tern.conf

@@ -0,0 +1,8 @@
+[database]
+host = {{ env "WSRS_DATABASE_HOST" }}
+port = {{ env "WSRS_DATABASE_PORT" }}
+# database is required
+database = {{ env "WSRS_DATABASE_NAME" }}
+# user defaults to OS user
+user = {{ env "WSRS_DATABASE_USER" }}
+password = {{ env "WSRS_DATABASE_PASSWORD" }}