huskies: merge 1140 story One-shot project-rebuild chat command: rebuild image, swap container, reconnect, preserve state

server/src/chat/transport/matrix/new_project.rs

@@ -533,7 +533,7 @@ async fn read_host_git_config(key: &str) -> Option<String> {
 /// Resolve the git identity to use for new project containers.
 ///
 /// Priority: `bot.toml` fields → host `git config` → hardcoded fallback.
-async fn resolve_git_identity(config_dir: &std::path::Path) -> (String, String) {
+pub(crate) async fn resolve_git_identity(config_dir: &std::path::Path) -> (String, String) {
     let (bot_name, bot_email) = read_git_identity_from_bot_toml(config_dir).await;
 
     let name = if let Some(n) = bot_name {
@@ -1335,7 +1335,7 @@ pub async fn build_project_image(
 /// `/home/huskies/.claude/.credentials.json` with mode 0600.  Mounting to an
 /// intermediate path (rather than directly to the destination) ensures the
 /// huskies user owns the copy regardless of the host user's UID.
-fn project_docker_run_args(
+pub(crate) fn project_docker_run_args(
     container_name: &str,
     port: u16,
     ssh_port: u16,