added initial roadmap and implementation

migrations/20240101000001_refresh_tokens.sql

@@ -0,0 +1,14 @@
+
+CREATE TABLE IF NOT EXISTS refresh_tokens (
+    id BIGSERIAL PRIMARY KEY,
+    token TEXT NOT NULL UNIQUE,
+    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    revoked BOOLEAN NOT NULL DEFAULT false,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    parent TEXT,
+    session_id UUID
+);
+
+CREATE INDEX IF NOT EXISTS refresh_tokens_token_idx ON refresh_tokens(token);
+CREATE INDEX IF NOT EXISTS refresh_tokens_user_id_idx ON refresh_tokens(user_id);