feat: implement SQLite and Postgres event queue adapters

- Added SQLite and Postgres event queue implementations with migrations and payload structures.
- Created migration scripts for both SQLite and Postgres event queues.
- Implemented event publishing and consumption logic for both adapters.
- Added serialization and deserialization for domain events to database payloads.
- Updated presentation and worker crates to support new event queue features.
- Refactored event handling to utilize the new database-backed event queues.

crates/adapters/sqlite-event-queue/migrations/0001_event_queue.sql

@@ -0,0 +1,13 @@
+CREATE TABLE IF NOT EXISTS event_queue (
+    id              INTEGER PRIMARY KEY AUTOINCREMENT,
+    event_type      TEXT    NOT NULL,
+    payload         TEXT    NOT NULL,
+    status          TEXT    NOT NULL DEFAULT 'pending',
+    attempts        INTEGER NOT NULL DEFAULT 0,
+    created_at      TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+    next_attempt_at TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+    last_error      TEXT
+);
+
+CREATE INDEX IF NOT EXISTS idx_event_queue_poll
+    ON event_queue (status, next_attempt_at);