Add document-format crate (#4234)

* Add document-format crate

* Adapt document-format to merged graph-storage and consolidate errors

* Fix resource write ordering, codec error masking, and export docs

* Remove document-format RFC; tracked in a dedicated PR

* Restructure document-format into gdd/persist/export/resource modules

Split the 963-line lib.rs by responsibility: persist path into persist.rs, resource I/O into resource.rs, export engine into export.rs. Rename the GddV1 layout struct to GddV1Layout and add a GddV1 = Gdd<GddV1Layout> alias.

* Feature-split document-format and graph-storage for minimal builds

* Address PR review: O(1) history-delta lookup and no-default-features test build

* Address PR review: propagate apply_hot_op persist error and assert resource hash

* Make decompression from archive streaming

* Share archive export body between export and export_to_bytes

* Review cleanup

* Export documents with un-retired hot ops losslessly

* Persist last_broadcast_rev in session.json, drop unused last_retired_at

* Move peer_id from manifest to session.json

* Rename gesture to interaction in document-format storage layer

Cargo.lock

@@ -1269,6 +1269,24 @@ dependencies = [
  "litrs",
 ]
 
+[[package]]
+name = "document-format"
+version = "0.0.0"
+dependencies = [
+ "core-types",
+ "document-container",
+ "futures",
+ "graph-craft",
+ "graph-storage",
+ "graphene-resource",
+ "log",
+ "rmp-serde",
+ "serde",
+ "serde_json",
+ "tempfile",
+ "thiserror 2.0.18",
+]
+
 [[package]]
 name = "downcast-rs"
 version = "1.2.1"