♻️ Refactor file data migrations subsystem (#5692)

* ♻️ Refactor file data migrations subsystem

* 📎 Add backend scripts/run helper script

backend/scripts/run

@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+
+export PENPOT_SECRET_KEY=super-secret-devenv-key
+export PENPOT_HOST=devenv
+export PENPOT_FLAGS="\
+       $PENPOT_FLAGS \
+       enable-backend-asserts \
+       enable-feature-fdata-pointer-map \
+       enable-feature-fdata-objects-map \
+       enable-file-snapshot \
+       enable-tiered-file-data-storage";
+
+export JAVA_OPTS="
+       -Djava.util.logging.manager=org.apache.logging.log4j.jul.LogManager \
+       -Djdk.attach.allowAttachSelf \
+       -Dlog4j2.configurationFile=log4j2-devenv.xml \
+       -XX:+EnableDynamicAgentLoading \
+       -XX:-OmitStackTraceInFastThrow \
+       -XX:+UnlockDiagnosticVMOptions \
+       -XX:+DebugNonSafepoints";
+
+export CLOJURE_OPTIONS="-A:dev"
+
+
+# Default deletion delay for devenv
+export PENPOT_DELETION_DELAY="24h"
+
+# Setup default upload media file size to 100MiB
+export PENPOT_MEDIA_MAX_FILE_SIZE=104857600
+
+# Setup default multipart upload size to 300MiB
+export PENPOT_HTTP_SERVER_MAX_MULTIPART_BODY_SIZE=314572800
+
+export AWS_ACCESS_KEY_ID=penpot-devenv
+export AWS_SECRET_ACCESS_KEY=penpot-devenv
+export PENPOT_OBJECTS_STORAGE_BACKEND=s3
+export PENPOT_OBJECTS_STORAGE_S3_ENDPOINT=http://minio:9000
+export PENPOT_OBJECTS_STORAGE_S3_BUCKET=penpot
+
+entrypoint=${1:-app.main};
+shift 1;
+set -ex
+
+clojure $CLOJURE_OPTIONS -A:dev -M -m $entrypoint "$@";