Binary: extend the migrate-db subcommand with --dump and --restore so a
SQLite database can be exported to a portable SQL text dump and rebuilt from
one, alongside the existing --dsn PostgreSQL copy. Implemented in Go via the
bundled sqlite driver (new database/dump_sqlite.go); no external sqlite3 client
is required. Add ExportPostgresToSQLite (reverse of MigrateData) to build a
SQLite .db from live PostgreSQL data, reusing the shared copyAllModels helper.
Overview: add a "Download Migration" item to Backup & Restore plus a
getMigration endpoint/service that returns a .dump on SQLite or a .db on
PostgreSQL, so the data can seed a panel on the other backend. Document the
endpoint in api-docs and translate the three new strings across all locales.
Tests: cover the destination-side copy (AutoMigrate + copyTable into SQLite)
and the dump/restore round-trip including quoted values. Ignore *.dump.
The x-ui.sh helper that drives this from the CLI is in PR #4910.
Auto-generated inbound tags (in-<port>-<l4>, n<id>- prefixed for node inbounds) now re-derive when port/listen/transport change on update instead of keeping the stale round-tripped value. The resolved tag is mirrored onto the API response, and NodeID is pinned to the stored row so a node inbound never loses its n<id>- prefix on edit. The edit form recomputes the tag live via a Go-parity helper so the JSON preview matches what gets saved.
Make node/central tag matching prefix-agnostic in all three places (traffic attribution, remote-id resolution, and the orphan sweep) so an n<id>- prefix present on only one side can no longer spawn duplicate inbounds or drop traffic on sync.
Force LF on shell scripts via .gitattributes (CRLF broke the Docker build shebang when the repo is checked out on Windows) and add a .dockerignore to keep node_modules/.git out of the build context.
Adds Go and frontend tests covering tag re-derivation, prefix-agnostic matching, and node-snapshot prefix mismatch.
