fix: rust 1.95.0 clippy lints and matrix-sdk 0.17 API changes

Toolchain bump surfaced new lints (derivable_impls,
unnecessary_unwrap, unnecessary_sort_by, while_let_loop,
collapsible_match, unnecessary_option_map_or_else, cmp_owned)
across bft-json-crdt and huskies-server. All fixed mechanically.

Cargo.toml: dropped the no-longer-existing `rustls-tls` matrix-sdk
feature, then chased through the 0.17 API breakage:
- Relation::Reply is now a tuple variant wrapping Reply, not a
  struct variant with `in_reply_to`
- UserIdentifier::UserIdOrLocalpart removed — use
  UserIdentifier::Matrix(MatrixUserIdentifier::new(..))
- SendMessageLikeEventResult no longer exposes event_id directly;
  it's now on the inner `response` field

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

server/src/http/mcp/story_tools/criteria.rs

@@ -101,16 +101,13 @@ pub(crate) fn tool_ensure_acceptance(args: &Value, ctx: &AppContext) -> Result<S
         file_results = project_root.as_deref().and_then(|root| {
             crate::http::workflow::read_test_results_from_story_file(root, story_id)
         });
-        file_results.as_ref().map_or_else(
-            || {
-                // No results anywhere — use empty default for the acceptance check
-                // (it will fail with "No test results recorded")
-                static EMPTY: std::sync::OnceLock<crate::workflow::StoryTestResults> =
-                    std::sync::OnceLock::new();
-                EMPTY.get_or_init(Default::default)
-            },
-            |r| r,
-        )
+        file_results.as_ref().unwrap_or_else(|| {
+            // No results anywhere — use empty default for the acceptance check
+            // (it will fail with "No test results recorded")
+            static EMPTY: std::sync::OnceLock<crate::workflow::StoryTestResults> =
+                std::sync::OnceLock::new();
+            EMPTY.get_or_init(Default::default)
+        })
     };
 
     let coverage = workflow.coverage.get(story_id);