feat(cli): add claw status command

Extend the direct and slash status surfaces with git-aware context so workspace checks include branch freshness against origin/main, active worktrees, and the three most recent commits.

Constraint: Keep the implementation scoped to rust/crates/commands/src/lib.rs and rust/crates/rusty-claude-cli/src/main.rs
Rejected: A separate dedicated git-status subcommand struct layer | unnecessary complexity for a single report surface
Confidence: high
Scope-risk: narrow
Reversibility: clean
Directive: Keep claw status read-only; do not fetch or mutate git state when computing freshness
Tested: cargo build --workspace; cargo test --workspace; ./target/debug/claw status
Not-tested: Repositories without git installed

rust/crates/commands/src/lib.rs

@@ -60,7 +60,7 @@ const SLASH_COMMAND_SPECS: &[SlashCommandSpec] = &[
     SlashCommandSpec {
         name: "status",
         aliases: &[],
-        summary: "Show current session status",
+        summary: "Show current session status with branch freshness, worktrees, and recent commits",
         argument_hint: None,
         resume_supported: true,
     },
@@ -3713,6 +3713,16 @@ mod tests {
         assert!(help.contains("Resume           Supported with --resume SESSION.jsonl"));
     }
 
+    #[test]
+    fn renders_status_help_with_repo_snapshot_summary() {
+        let help = render_slash_command_help_detail("status").expect("detail help should exist");
+        assert!(help.contains("/status"));
+        assert!(help.contains(
+            "Summary          Show current session status with branch freshness, worktrees, and recent commits"
+        ));
+        assert!(help.contains("Resume           Supported with --resume SESSION.jsonl"));
+    }
+
     #[test]
     fn validate_slash_command_input_rejects_extra_single_value_arguments() {
         // given