Implement experimental file-based encrypted private chat

Add fixed-suite Rust/WASI identity files, signed challenge authentication, ciphertext-only SQLite storage, a minimal LibreJS-compatible interface, and consistent backup snapshots. Keep production unchanged and document the local workflow, limits, source distribution, and browser recovery tests.

1 files changed, 4 insertions, 0 deletions

diff --git a/deny.toml b/deny.toml
index 473704d..c80da7b 100644
--- a/deny.toml
+++ b/deny.toml
@@ -21,6 +21,10 @@ name = "stack"
 allow = ["AGPL-3.0-or-later"]
 
 [[licenses.exceptions]]
+name = "stack-chat-server"
+allow = ["AGPL-3.0-or-later"]
+
+[[licenses.exceptions]]
 name = "stack-chat-crypto"
 allow = ["AGPL-3.0-or-later"]