feat: update template

internal/db/migrations/000013_add_file_image_metadata.up.sql

@@ -0,0 +1,9 @@
+CREATE TABLE file_image_metadata
+(
+    id      INTEGER PRIMARY KEY GENERATED ALWAYS AS IDENTITY,
+    file_id INTEGER UNIQUE NOT NULL,
+    width       INTEGER NOT NULL,
+    height      INTEGER NOT NULL,
+    format      TEXT NOT NULL,
+    created_at    TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);