M13.15: qa project lifecycle; Collect Files makes its folder; agents cookbook

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

crates/engine/src/commands/file_more.rs

@@ -313,6 +313,9 @@ fn find_missing(s: &mut Session, p: &Value) -> Result<Value> {
 
 fn collect_files(s: &mut Session, p: &Value) -> Result<Value> {
     let folder = str_p(p, "folder").ok_or_else(|| bad("file.collectFiles", "missing `folder`"))?.trim_end_matches('/').to_string();
+    // Collect Files makes its folder (and the footage folder inside it).
+    #[cfg(not(target_arch = "wasm32"))]
+    std::fs::create_dir_all(format!("{folder}/(Footage)")).map_err(|e| EngineError::Other(format!("cannot create {folder}: {e}")))?;
     let mut proj = (*s.project).clone();
     let mut copied = 0;
     let mut errors = vec![];

crates/engine/src/commands/watch_folder.rs

@@ -146,7 +146,7 @@ pub fn specs() -> Vec<CommandSpec> {
             "Poll Watch Folder",
             [],
             None,
-            "{folder? (default: the watched one)} → renders new projects now: [{project, state: done|failed, items: [{comp, status, output}]}]",
+            "{folder? (default: the watched one)} → renders new projects now: {watching, rendered: [{project, state: done|failed, items: [{comp, status, output}]}]}",
             |s: &Session| if s.state.watch_folder.is_some() { Ok(()) } else { Err("no folder is being watched".into()) },
             poll_cmd
         ),