Add message endpoint (#13)

Reviewed-on: phoenix/textsender_api#13

migrations/20260613211440_init.sql

@@ -10,3 +10,9 @@ CREATE TABLE IF NOT EXISTS "contacts" (
     lastname TEXT NULL,
     nickname TEXT NULL
 );
+
+CREATE TABLE IF NOT EXISTS "messages" (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    content TEXT NOT NULL,
+    user_id UUID NOT NULL
+);

migrations/schema.sql

@@ -1,49 +0,0 @@
--- CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
--- 
--- DROP TABLE IF EXISTS contacts CASCADE;
--- DROP TABLE IF EXISTS messages CASCADE;
--- DROP TABLE IF EXISTS scheduled_messages CASCADE;
--- DROP TABLE IF EXISTS scheduled_message_events CASCADE;
--- DROP TABLE IF EXISTS message_event_responses CASCADE;
--- 
--- CREATE TABLE IF NOT EXISTS contacts (
---     id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
---     phone_number TEXT NOT NULL,
---     user_id UUID NOT NULL,
---     first_name TEXT NULL,
---     last_name TEXT NULL,
---     nickname TEXT NULL
--- );
--- 
--- CREATE TABLE IF NOT EXISTS messages (
---     id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
---     content TEXT NOT NULL,
---     user_id UUID NOT NULL
--- );
--- 
--- CREATE TABLE IF NOT EXISTS scheduled_messages (
---     id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
---     scheduled timestamptz NOT NULL,
---     created timestamptz DEFAULT now(),
---     status TEXT CHECK (status IN ('PENDING', 'READY', 'PROCESSING', 'DONE')),
---     user_id UUID NOT NULL
--- );
--- 
--- CREATE TABLE IF NOT EXISTS scheduled_message_events (
---     id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
---     contact_id UUID NOT NULL,
---     message_id UUID NOT NULL,
---     scheduled_message_id UUID NOT NULL,
---     created timestamptz DEFAULT now()
--- );
--- 
--- CREATE TABLE IF NOT EXISTS message_event_responses (
---     id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
---     scheduled_message_event_id UUID NULL,
---     response JSONB NOT NULL,
---     user_id UUID NOT NULL,
---     sent timestamptz NOT NULL,
---     contact_id UUID NULL,
---     message_id UUID NULL,
---     status TEXT CHECK (status IN ('INSTANT', 'SCHEDULED'))
--- );