add DB to record each image upload

sql/flyway.conf

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+# env vars are FLYWAY_URL, FLYWAY_USER, FLYWAY_PASSWORD
+# https://documentation.red-gate.com/fd/parameters-224919673.html
+flyway.url=jdbc:sqlite:./sqlite-db.sqlite
+flyway.user=admin
+flyway.password=password
+
+# also potentially referenced in .env or an environment variable
+flyway.locations=filesystem:./sql/migrations

sql/migrations/V1__Create_image_table.sql

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+CREATE TABLE image (
+  date TEXT NOT NULL,
+  did TEXT NOT NULL,
+  local_file TEXT NOT NULL,
+  size INTEGER NOT NULL,
+  aws_file TEXT NOT NULL,
+  url TEXT NOT NULL
+);