feat: enhance evobgp with new command-line tools for bundle management, including pull, verify, and apply functionalities. Update go.mod to include necessary dependencies and complete todos in architecture plan for improved observability and deployment practices.

internal/db/migrations.go

@@ -0,0 +1,9 @@
+package db
+
+import "evobgp/migrations"
+
+// PostgresMigrations and SQLiteMigrations expose embedded SQL files for migrate runners (plan §1, §11).
+var (
+	PostgresMigrations = migrations.Postgres
+	SQLiteMigrations   = migrations.SQLite
+)